Astuces de survie que vous devez connaître même si vous ne les utiliserez jamais

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Transcript

00:00:01You're on vacation and things are going terribly wrong.

00:00:05If you fall from a cliff, do your best to hang on to obstacles and go down in several steps.

00:00:10Each of the segments will absorb part of the impact of the fall,

00:00:13and you will have a much greater chance of surviving.

00:00:15Try to hang on to a solid object like a bush or a rock,

00:00:19going down to slow down your movement.

00:00:21A piece of wood or a board can also be useful,

00:00:24because it can help you cushion your fall when you hit the ground.

00:00:28If your pan caught fire, don't take it outside or try to put out the fire with water.

00:00:32This will aggravate the situation.

00:00:34Cover the flames with a metal lid.

00:00:36This way, you will remove the source of oxygen.

00:00:39Your movements must be fast, but gentle and calm.

00:00:42Don't forget to keep the lid between you and the flames.

00:00:45Leave the lid in place until the pan has cooled.

00:00:48If the fire is small and easy to control,

00:00:51you can use salt or baking soda to put it out.

00:00:54By the way, the use of chemical yeast, flour or other baking powder

00:00:58that looks like salt or baking soda is an absolute NO.

00:01:02They won't help you because their chemical composition is different.

00:01:06If you find yourself in a crowd in panic,

00:01:08your main task is to create some space around you.

00:01:11To do this, keep your hands close to your chest,

00:01:14your arms bent at the elbow.

00:01:16Boxers often use this position to protect their vital organs.

00:01:19Don't cross the crowd's path.

00:01:21Move with it by drifting slowly to one of its sides.

00:01:24Be careful not to block anyone's passage,

00:01:27because in this case, you could be pushed to the ground.

00:01:30If you are with your family, put the child on your shoulders

00:01:33and let the weakest members of the family pass in front of you.

00:01:36This way, you will be able to control the movement and you won't lose anyone.

00:01:39If someone attacks you from behind in the street, crush his foot.

00:01:42Do it with all the strength you have and aim for the top of the foot.

00:01:45This can damage or even break several bones in the foot,

00:01:48which will complicate the attacker's task if he decides to pursue you.

00:01:51If you are locked in a car trunk,

00:01:54try to send a SOS signal to the people outside.

00:01:57To do this, look for the rear lights wires.

00:02:00There are usually at least two for each light.

00:02:03Find something pointed in the trunk and cut one of these wires.

00:02:06When you reconnect the ends, the light will flash.

00:02:09If the brakes of your car suddenly stop responding,

00:02:12ask the passenger, if you have any,

00:02:14to make sure their seat belt is securely fastened.

00:02:17Then, turn on the emergency lights,

00:02:20inform the other drivers that you have an emergency

00:02:23by using your horn and your long-range headlights.

00:02:26In case of sudden and strong movement, press the brake pedal.

00:02:29This way, you will be able to create pressure in the braking system.

00:02:32Then, carefully reverse and put the gear lever in the L position.

00:02:35If the car is equipped with a mechanical gearbox,

00:02:38press the clutch pedal.

00:02:41Then, use the manual brakes, but very slowly.

00:02:45To slow down your car, you can also try to turn left and right

00:02:48by switching from one row to the other.

00:02:51If you have fallen through the ice in frozen water,

00:02:54try to come back to the edge of the ice.

00:02:57Don't get out by grabbing it. The edge will continue to break

00:03:00and you will exhaust yourself in no time.

00:03:03Kick your legs until your body is horizontally positioned in the water.

00:03:06Then get out of the water and put yourself on the ice like a seal.

00:03:09Once you have arrived, do not get up at all.

00:03:12In this way, your weight will be distributed on a larger surface.

00:03:15The ice will then have less chance of breaking.

00:03:18The most effective way to help a person who is suffocating

00:03:21is to perform the Heimlich maneuver.

00:03:24But what to do if you suffocate while you are alone?

00:03:27Form a fist with one hand and place the side of the thumb

00:03:30above your navel but below your thoracic cage.

00:03:33Grab this fist with your other hand and lean on the edge of a table or chair.

00:03:36Then start pressing on the upper part of your abdomen

00:03:39by making quick pushes upwards.

00:03:42Repeat them until the foreign body comes out.

00:03:45You can also put yourself on your knees and elbows

00:03:48and then throw your arms forward very quickly.

00:03:51You will fall flat on the ground, arms stretched in front of you

00:03:54and your chest and belly will hit the ground.

00:03:57This will push the air out of your lungs and with a little luck,

00:04:00dislodge the object stuck in your respiratory tract.

00:04:03The whole process will be painful but it can save your life.

00:04:06If you see a whirlwind coming towards you, don't panic.

00:04:09If you understand which way it is turning, move around

00:04:12and use the current of the whirlwind to catapult yourself out of danger.

00:04:15If you start fighting it, you may be attracted to the inside.

00:04:18It is also possible that a whirlwind dissolves

00:04:21or weakens closer to the bottom.

00:04:24If you are trapped, breathe deeply and wait for an opportunity

00:04:27to swim up and the opposite direction.

00:04:30If you are stuck in a falling elevator,

00:04:34the fat and muscles of your body are compressible.

00:04:37They will absorb the force of the impact.

00:04:40If you can't lie down, opt for the sitting position.

00:04:43It is always better than the standing position.

00:04:46Your back will act like an airbag in a car.

00:04:49But whatever position you adopt, try to cover your head.

00:04:52The best way to do it is to put one arm in front of your face

00:04:55and the other behind your neck.

00:04:58A storm can surprise you in the open air and you will have nowhere to hide.

00:05:02If there is a large object in the area, do not approach it.

00:05:05There must be a distance of at least two objects between you and this thing.

00:05:08Other people count too.

00:05:11If you are caught in a storm with a group of friends,

00:05:14disperse until they pass.

00:05:17If you find yourself stuck in debris, for example during an earthquake,

00:05:20your main task is to protect your respiratory organs.

00:05:23You must also make sure that your air supply lasts as long as possible.

00:05:26Take off your shirt and tie a knot at the bottom.

00:05:30Then put it back on your head through the hole in the neck.

00:05:33The knot must be on top of your head.

00:05:36This way you will get a fortune hood that will protect your face from dust,

00:05:39sand and debris.

00:05:42It will also provide you with a little oxygen while you try to get back to the surface.

00:05:45If you see a tornado approaching and you don't have a basement in your house,

00:05:48lie down in a bathtub.

00:05:51Use a pillow to protect your head from all kinds of debris that could fall.

00:05:54Experts say that plumbing in the walls of the bathroom

00:05:58adds a structural resistance to this place.

00:06:01But if your bathroom has windows or an outside wall,

00:06:04opt for a safer place, such as a closet.

00:06:07The more walls that separate you from the tornado, the better.

00:06:10Smoke is the most dangerous thing in a house fire.

00:06:13If you find yourself trapped in a building on fire,

00:06:16stay low and crawl to the nearest exit.

00:06:19Smoke usually goes up to the ceiling.

00:06:22This is why crouching can help you avoid inhalation.

00:06:25If you have a tissue or a handkerchief, put it against your mouth.

00:06:28It will act as a filter against the smoke.

00:06:31If you are stuck in moving sand,

00:06:34do everything you can to keep your head and arms above the surface at all times.

00:06:37Begin to gently move your legs.

00:06:40The moving sand should fill the space that used to occupy it.

00:06:43As soon as you can, lie on your back.

00:06:46This will increase your surface.

00:06:49Continue to make small movements until your legs are free.

00:06:52If you are caught in an avalanche and you are dragged by a huge mass of snow,

00:06:55try to stay above it.

00:06:58To do this, make swimming movements with your whole body

00:07:01as if you were going against the current of the river.

00:07:04When you feel that the avalanche is slowing down,

00:07:07try to lift something to its surface.

00:07:10It can be your arm, your leg or a ski stick.

00:07:13This way, the rescuers will find you more easily.

00:07:16With the other hand, create a small pocket of air in front of your face.

00:07:20In short, if all these things happen to you again and again,

00:07:23you don't have much luck, do you?

00:07:26So please, don't invite me to join you on your next vacation.

00:07:31You can turn ordinary matches into waterproof matches.

00:07:34Apply a thin layer of nail polish on your matches and let them dry.

00:07:37Once they are ready, they will be dry enough to light a fire,

00:07:40even if you drop them in the water.

00:07:43If you get lost somewhere during the winter and you are thirsty,

00:07:46don't eat snow.

00:07:49It contains a lot more air than water,

00:07:52so you won't feel much more hydrated.

00:07:55Your body will waste a lot of energy trying to melt it.

00:07:58Worse still, you risk lowering your body temperature

00:08:01and you could get hypothermia.

00:08:04If you come across a coyote or a wolf, don't turn your back on it.

00:08:07Move back slowly while facing the animal.

00:08:10However, this only works if the animal is alone.

00:08:13If you come across a sheep,

00:08:16the most important thing is to make sure it doesn't surround you.

00:08:19Move back towards a tree and lean your back against it.

00:08:22Then, choose the right moment and climb on it as fast as possible.

00:08:25Several layers of clothing will warm you up better

00:08:28than a single fur coat or a single warm jacket.

00:08:31The air will be trapped between the layers of clothing,

00:08:34which will isolate you and keep your body warm.

00:08:37If you get lost in the woods, always try to sleep a little above the ground.

00:08:40You can lie down on a layer of branches and leaves,

00:08:43such as a fortune bed or a hammock between two trees.

00:08:46At night, the temperature drops and the ground becomes cold.

00:08:49Even if you make a fire, it could go out while you sleep

00:08:52and the ground will absorb your body heat.

00:08:55You're in a boat in the middle of the sea.

00:08:58No food, no fishing net and you're hungry.

00:09:01It was supposed to be a three-hour excursion, but you know what?

00:09:04You can catch fish with your shoelaces and any object.

00:09:07A phone, a watch, a key.

00:09:10The shadow projected by the boat in the sea can attract fish

00:09:13and a thoughtful object can serve as bait.

00:09:16Tie your keys to your shoelaces and use them like a fishing rod.

00:09:19Even if a fish doesn't die, activities like this

00:09:22are a good way not to lose your head in the middle of the sea.

00:09:25A short meditation can save you from a panic attack.

00:09:28You have to focus on your breathing and try to slow it down.

00:09:31Your brain will quickly calm down and divert its attention from panic.

00:09:34Oxygen masks in planes work on the same principle.

00:09:37When you control your breathing,

00:09:40your attention is redirected away from what is happening.

00:09:43You can make a torch from a log.

00:09:46Place a small log vertically,

00:09:49make a deep notch in the shape of a star on top.

00:09:52Put some dry grass, leaves and twigs in it.

00:09:55Once you've finished, put the fire on the log

00:09:58and it will burn for a maximum of three hours.

00:10:01It should work no matter the size and the type of wood.

00:10:04If you meet a grizzly in anger,

00:10:07never try to run away because the bear can easily catch up with you.

00:10:10Instead, lie down and don't move.

00:10:13Grizzlies usually only attack when they see a threat,

00:10:16so they will often leave you alone if you show them

00:10:19that you won't cause them any trouble.

00:10:22But this only works with grizzlies.

00:10:25If a confrontation is inevitable, move back slowly and use an anti-bear spray.

00:10:28If you don't have one, the pepper spray works the same way

00:10:31and should disorientate the bear and make it run away.

00:10:34Or not.

00:10:37Don't eat berries or mushrooms in the forest

00:10:40if you don't know exactly what they are.

00:10:43They could be toxic.

00:10:46If you have no other choice, eat the inner bark of the herbs,

00:10:49boulots and bread to fill your stomach.

00:10:52Use a knife to remove the rough outer bark

00:10:55or cook it on an open fire to make a crispy anka.

00:10:58And if you are really hungry, you can eat ants.

00:11:01They may not be very appetizing,

00:11:04but they are quite nutritious.

00:11:07If you don't have a watch, you can use your fingers

00:11:10to know how much time is left before sunset.

00:11:13Raise your hand so that the inside of your palm is facing you.

00:11:16Your fingers must be between the sun and the horizon line.

00:11:19Look how many fingers can hold in this space.

00:11:22Each finger corresponds to about 15 minutes.

00:11:25So you can calculate how much time is left before sunset.

00:11:28If you are lost and you have to make a fire to attract attention,

00:11:31throw a lot of bread or cedar branches,

00:11:34bread apples and any useless rubbery object.

00:11:37Your fire will emit more black smoke, which will make it visible from afar.

00:11:40If you don't have water in the desert but you have food,

00:11:43try to avoid eating for as long as possible.

00:11:46The more you eat, the hungrier you get.

00:11:49You don't need liquid to digest food.

00:11:52So you will use the little you have.

00:11:55A person can live much longer without food than without water.

00:11:58So don't be afraid to be hungry.

00:12:01You found a huge puddle of dirty water in the forest.

00:12:04If you desperately need to drink,

00:12:07you can fill your bottle and filter it to make drinking water.

00:12:10To clean it, make a rope made of gas or clothes.

00:12:13Place one end in the dirty water bottle and the other in an empty bottle.

00:12:16The impurities will stay in the first one.

00:12:19Before going hiking,

00:12:22replace your ordinary laces with paracord laces.

00:12:25If you don't have enough rope,

00:12:28these laces can give you a few extra centimeters in case of need.

00:12:31If you are lost in the forest and you have nothing to warm up,

00:12:34then pick up leaves and dry grass on the ground

00:12:37and mix them with two layers of clothes.

00:12:40This will help you stay warm longer.

00:12:43If you are in a desert,

00:12:46try to move as little as possible during the day.

00:12:49Find a shade or create it from improvised materials

00:12:52and shelter until the evening.

00:12:55At night, you will spend much less energy

00:12:58and you will use less liquid while walking.

00:13:01This will help you avoid the risk of insolation.

00:13:04If you fall through the ice,

00:13:07don't try to get out as you would in a pool.

00:13:10Pull your arms parallel to the surface of the ice

00:13:13and extend your legs backwards so that they float in the water.

00:13:16In this horizontal position,

00:13:19start shaking your legs as if you were swimming.

00:13:22Move your arms carefully without putting too much weight on the ice

00:13:25and you should be able to get out.

00:13:28If you have to make a fire when there is too much wind,

00:13:31here's what you have to do.

00:13:34Dig two holes next to each other

00:13:37and fill them with air through the second hole.

00:13:40This method is also useful if you have to make a fire without attracting attention.

00:13:43In the dark, this type of fire will be less visible.

00:13:46Do not throw or burst the bubble wrap.

00:13:49Take it on an expedition with you.

00:13:52It will protect you from the cold better than a thick blanket.

00:13:55These tiny air bubbles are a perfect insulator.

00:13:58Just put it between two layers of clothes

00:14:01so that the bubble wrap prevents any heat from escaping.

00:14:04If you swim in the sea, not far from the shore,

00:14:07you can easily be carried away by the currents.

00:14:10If this happens, the most important thing to remember

00:14:13is not to swim against the current.

00:14:16This will only waste your energy

00:14:19and it is unlikely that one day you will be stronger than the ocean current.

00:14:22Try to swim laterally along the shore.

00:14:25Sooner or later, you should get out of the current

00:14:28and you will be able to swim safely to the beach.

00:14:32If you are stuck in a free-fall elevator,

00:14:35do not try to jump at the time of the impact.

00:14:38Do not sit or stand either.

00:14:41You have to lie on the ground facing the ceiling.

00:14:44Spread your legs as much as possible, cover your face with one hand

00:14:47and put the other hand behind your head to protect you.

00:14:50In this position, you reduce the pressure exerted on your body when you fall.

00:14:53You are lost.

00:14:56A rescue helicopter flies over the forest,

00:15:00Use a small mirror or a phone screen to reflect the sunlight.

00:15:03Direct the beam of light towards the helicopter.

00:15:06The rescuers should notice the flash and fly towards you to save you.

00:15:11Wow, you are in the heart of the Sahara desert.

00:15:14You will participate in a marathon.

00:15:17From this point, you have to walk 950 km east to the rendezvous point.

00:15:20You want to prove to yourself that you can survive in any condition.

00:15:23The open sea, the frozen lands of Antarctica,

00:15:26the Amazon jungle, you have been everywhere.

00:15:29And now it's the turn of the scorching desert.

00:15:32The key to the success of any expedition is preparation.

00:15:35So you take a large backpack filled with necessary things.

00:15:38A small ax to cut the dry branches,

00:15:41a compass, a sleeping bag.

00:15:44You can't count on the GPS because the connection can be lost in the desert.

00:15:47Lighters, a first aid kit,

00:15:50water purification compresses, a flashlight.

00:15:53A scarf, a bandana, waterproof glasses

00:15:56that will protect your eyes from the sand,

00:15:59and light clothes that can cover your whole body.

00:16:02An impermeable or a tent will also be useful.

00:16:05You need all this to protect your body from the sand and the sun's rays.

00:16:08For the same reason, you also wear gloves.

00:16:11You can't eat too nutritious food.

00:16:14To digest them, your body will need a lot of energy and fluids.

00:16:17But these are the most important and rare things in the desert.

00:16:20Dry fruits are an excellent option.

00:16:23You also need water, a lot of water.

00:16:26It is safer to carry several small bottles than one large container.

00:16:29If this container is damaged, you will run out of water,

00:16:32while if you have several bottles, you reduce this risk.

00:16:35Your backpack is full and you are ready to start your journey.

00:16:38A helicopter puts you in the middle of the desert.

00:16:41First of all, you lubricate your nostrils with a moisturizing cream.

00:16:44This is necessary to prevent the mucous membranes from drying out.

00:16:47The hot air can burn your nose.

00:16:50And you don't want to breathe through your mouth

00:16:53to not lose the precious humidity that reigns there.

00:16:56You walk a few meters and you stop.

00:16:59It would be a mistake to travel in such a hot place during the day.

00:17:02You will start to sweat and lose a lot of fluid.

00:17:05However, your water reserves are limited.

00:17:08The ideal time to travel is in the evening and at night.

00:17:11At that time, it is cold.

00:17:14You take an old tree, cut it down and tie an oak to it.

00:17:17You have created a shadow, which means that your resting place is ready.

00:17:20It is important to move as little as possible to save your energy.

00:17:23You open your map and take out your compass.

00:17:26Then you check the itinerary,

00:17:29you look around you and you study the desert landscape

00:17:32to be able to orient yourself more easily.

00:17:35You want to drink water, but you stop.

00:17:38It is preferable not to drink for 24 hours so that your body goes into survival mode.

00:17:41You close your eyes and fall asleep.

00:17:44The sand blows in your face.

00:17:47You get up and you see that a sandstorm is approaching.

00:17:50The tree near which you slept seems too fragile.

00:17:53It will not resist the storm.

00:17:56You need an emergency shelter.

00:17:59You put on your glasses, you tie the scarf around your head

00:18:02and you moisten it to facilitate your breathing.

00:18:05If you did not have scarves, you should cover your face with your hands.

00:18:08Tiny grains of sand collide with your skin at high speed.

00:18:11Despite the protection, you feel a few on your face.

00:18:14There is no shelter where you can hide nearby.

00:18:17It could be a big stone, a tree, but nothing.

00:18:20You must now find a hill.

00:18:23During the storm, the grains do not just fly,

00:18:26they also bounce on the ground and on each other.

00:18:29When you are on a hill, most of the grains of sand fall along the slopes

00:18:32and you are more or less spared.

00:18:35You must go to a high ground as soon as possible,

00:18:38because it is difficult to move in such conditions.

00:18:41You lose too much energy, you even have to walk backwards.

00:18:44The back turned to the wind to protect your face.

00:18:47The storm is getting stronger.

00:18:50But luckily you are already getting up.

00:18:53You find yourself on a small sandy hill.

00:18:56You roll your tent around your body and you wait.

00:18:59Tired, you fall asleep again.

00:19:02Silence.

00:19:05The storm has passed.

00:19:08You remove the tent, shake the sand and inspect the surroundings.

00:19:11The evening is coming, the sun is no longer so hot.

00:19:14You take out your compass and your map to check the itinerary.

00:19:17But the moment after, you discover that the sandstorm

00:19:20has completely transformed the surrounding landscape.

00:19:23It is difficult to navigate with the help of the map

00:19:26when there are no familiar landmarks.

00:19:29You do not know where to go.

00:19:32But you have water and food and other people know approximately where you are.

00:19:35In this case, it is preferable for you to stay where you are.

00:19:38They will start looking for you and finally find you.

00:19:41You will not waste your energy and your reserves.

00:19:44But you look at the compass, the map

00:19:47and you decide to go east.

00:19:50You are here to finish the marathon, whatever it costs.

00:19:53The night is quite cold, but the constant movement helps you stay warm.

00:19:57You check your pockets and realize that you lost your matches during the storm.

00:20:00Then you see a dry tree in front of you.

00:20:03You cut some of its branches and attach them to your backpack.

00:20:06As you walk, you leave marks on the sand.

00:20:09These are the branches to which you have attached pieces of fabric

00:20:12and that you plant in the ground at regular intervals.

00:20:15This way, you can help the rescuers find you

00:20:18if you do not arrive at the rendezvous point.

00:20:21It is already dawn, the sun is burning.

00:20:25You find another tree, create a shadow with the tent,

00:20:28drink a little water and go to sleep.

00:20:31The night has come, you cut the branches of the tree

00:20:34and you wander again in the desert.

00:20:37It seems that you are lost.

00:20:40Your water runs out faster than expected.

00:20:43You click an energy bar and your body demands even more water.

00:20:46The most important thing in this situation is to stay calm.

00:20:49Panic drains your energy.

00:20:52The desert is your home and you know it perfectly.

00:20:55It gives you strength and confidence.

00:20:58You find the ruins of an old building and you hide in its shadow.

00:21:01Then you put the branches in a single pile

00:21:04and you set fire to it with a mirror.

00:21:07You need fire so that the rescuers notice the smoke.

00:21:10Unfortunately, there are no helicopters flying in the sky.

00:21:13You continue your journey the next night

00:21:16and you discover that you only have one bottle of water left.

00:21:19You try to eat as little as possible

00:21:22so that your body does not waste energy digesting the food.

00:21:25It makes you weaker.

00:21:28Your goal is now to replenish your reserves.

00:21:31To do this, you have to wait for dawn.

00:21:34Then you will look at the sky, you will find the clouds

00:21:37and you will go in this direction.

00:21:40Where there are clouds, there should be life and water.

00:21:43But very quickly, you understand that the sun is too hot.

00:21:46Then you lie down and go to sleep quickly.

00:21:49The sun has changed position and now shines straight on you.

00:21:52Its heat wakes you up.

00:21:55You have no more water.

00:21:58You get up and look for stones or vegetation.

00:22:01You can get a little liquid from the grass, plants or bushes.

00:22:04After the rains, the humidity stays under the stones for a long time.

00:22:07Turn them over and check, but with caution.

00:22:10Scorpions, snakes and spiders can hide there.

00:22:13You must also inspect the sand to find traces of animals or insects.

00:22:16Animals always go to the sources of water

00:22:19and you have to follow them.

00:22:22But be very careful.

00:22:25It can be traces of cheetahs or lichens.

00:22:28You are too weak to defend yourself against them.

00:22:31You have to spot the animals from afar and wait for them to drink first.

00:22:34You find footprints.

00:22:37A group of hyenas, smart, walk in the distance.

00:22:40You follow them slowly.

00:22:43They lead you to an oasis.

00:22:46You wait a few hours for them to finish drinking.

00:22:49Finally, they leave the place and you can quench your thirst.

00:22:52Do not forget to put purification tablets in the water.

00:22:55But even if you do not have them, you should still drink.

00:22:58In any case, it can not be worse.

00:23:01In addition, it is important not to drink too much water at once.

00:23:04Your body is exhausted and cannot assimilate a large amount of liquid quickly.

00:23:07So you drink slowly, little by little.

00:23:10You feel like you can do this for hours.

00:23:13Then you eat and pour water into your bottles.

00:23:16No longer hungry, feeling satisfied and happy, you fall asleep again.

00:23:19A noise wakes you up.

00:23:22A helicopter.

00:23:25They fly right above you.

00:23:28You scream and shake your hands.

00:23:31But the rescuers do not notice you.

00:23:34Think, think.

00:23:37You take out your mirror, catch a ray of sun and direct it towards the helicopter.

00:23:40The rescuers noticed you.

00:23:43You are saved.

00:23:46Oh, you find yourself in cold water to the neck.

00:23:49You are surrounded by ice. You have to get out of there.

00:23:52When you swim in icy water, your body can experience a certain shock.

00:23:55Your reflexes may push you to stop, but do not.

00:23:58Just try to keep your head out of the water.

00:24:01Get rid of all heavy objects like boots, jackets or backpacks.

00:24:04When you reach the ice, do not just try to get out of it.

00:24:07It is not exactly like a pool.

00:24:10Try to put yourself in a horizontal position and use your legs to swim on the ice.

00:24:13Hold on to your hands to get out of the water.

00:24:16Once on the surface, roll aside by moving away from the edge.

00:24:19Then crawl, then walk.

00:24:22If you are adventuring in nature, it is preferable to prepare a few things in advance.

00:24:25For example, a bag of ice.

00:24:28Make your own fire at home.

00:24:31Heat water in a saucepan.

00:24:34Put a container in pyrex and melt paraffin in it.

00:24:37Then take an egg box and put drying plushes in each section.

00:24:40Fill them with paraffin, then wait for everything to be solid and cut each small section.

00:24:43Just one of these small pieces is enough to start a fire much more easily.

00:24:46The dental floss can be very practical to survive in the cold water.

00:24:49It is also a good way to keep your teeth clean.

00:24:52It is also a good way to keep your teeth clean.

00:24:55The dental floss can be very practical to survive in the jungle.

00:24:58You can use it as a fishing line with a box of canned food like a hensong.

00:25:01You can use it as a fishing line with a box of canned food like a hensong.

00:25:04It can also be used as a laundry cord if you tie it between two trees.

00:25:07It looks a bit fragile, but a single piece of floss can support up to 2.2 kg.

00:25:10It looks a bit fragile, but a single piece of floss can support up to 2.2 kg.

00:25:13It is also very flammable, so if you have trouble lighting a fire,

00:25:16you can use a few meters of dental floss to start it.

00:25:19you can use a few meters of dental floss to start it.

00:25:22a very solid rope with a simple plastic bottle, if you have a good pair of scissors.

00:25:28Cut the bottle cap so that it looks like a tall and narrow cup.

00:25:32Then cut it like some people peel an orange, turning it in a circle and making a spiral.

00:25:38Try to keep the same width throughout the process.

00:25:42The result will be much longer and more solid than what you expect.

00:25:46You can use it to attach sticks together to make a hut,

00:25:50or you can wrap it around your backpack in case it tears or something.

00:25:55Sugar can be harmful to the teeth, but it has a pretty cool superpower.

00:25:59Just pour it on a piece of fabric and use it as a bandage.

00:26:03Oh, it's delicious!

00:26:05Mosquitoes can be very painful, and there are a lot of them everywhere.

00:26:09You can make your own insect repellent to get rid of these exasperating little beasts.

00:26:14All you need is an orange, a lemon or any other citrus.

00:26:18They are full of essential oils that mosquitoes can't stand.

00:26:22Peel an orange and rub its peel directly on your skin,

00:26:26making sure to press it lightly beforehand to bring out the precious essential oils.

00:26:31Another good way to keep mosquitoes away is to add a little orange peel to your campfire.

00:26:37This frees the essential oils in the air.

00:26:40You're starting to get hungry, but you have nothing to light a fire.

00:26:44There may be something in there that you can use as a lucky charm.

00:26:49If you have a battery and a metal chewing gum packaging, you have what you need.

00:26:54Cut a thin strip of the packaging long enough to be able to join the two sides of the battery.

00:26:59The middle of the strip must be thinner than the ends.

00:27:03Take some dry grass, twigs or even paper, anything you can use to light your fire.

00:27:09The aluminum paper strip should catch fire immediately, so get ready.

00:27:14A human can survive incredibly long without food, but not without water.

00:27:19It all depends on where you are, but often it's not safe to drink.

00:27:24You can make a water filter yourself. It all starts with a fire.

00:27:29You may not have enough water to boil,

00:27:32so as soon as the ashes of your fire are cooled, you have to powder them.

00:27:36Don't use any ash found randomly in the forest.

00:27:39There may be melted plastic on top or something like that.

00:27:43Then you need a plastic bottle. Cut the bottom and drill a small hole in the cap.

00:27:49Turn it over, put about 5 cm of charcoal in it and pour the water in the bottle, very gently.

00:27:56The drops are ready to be drunk.

00:27:59If you find pieces of ash in the water, wrap a piece of clean fabric around the cap for additional filtration.

00:28:06A carbonized cloth can be useful if you are lost in the jungle.

00:28:10To make it, you will need a metal container with a lid.

00:28:14Put a piece of fabric inside and place the container in the fire for a few minutes.

00:28:20The fabric should eventually turn a little black on the edges, but remain intact.

00:28:25A carbonized fabric catches fire very quickly, even with an old school silex.

00:28:30If you ever go hiking in the garden of an anaconda, listen carefully.

00:28:34Stay away from shallow rivers because these giant snakes like to drag you.

00:28:39If an anaconda decides to squeeze you a little, don't expire.

00:28:43Every time you do it, the snake will squeeze you a little harder.

00:28:47Anacondas, however, have a weak point. They don't like to get their tail bitten.

00:28:52It's not particularly delicious, but it will help you get out of there.

00:28:56Avalanches are quite powerful, so don't forget these tips the next time you're on the slopes if things get a little dangerous.

00:29:04First of all, cover your mouth. Use a scarf or another piece of fabric and don't let the snow in.

00:29:11Keep your right arm over your head and don't forget to clear a small window in front of your face.

00:29:17This will allow you to breathe for about half an hour.

00:29:21Get rid of everything that's heavy, even if it's expensive.

00:29:24But make sure you keep your water bag because it's an additional protection.

00:29:29And hang on to a tree if you see one.

00:29:32To get back to the surface, move as if you were swimming straight.

00:29:36Snow is nothing but water.

00:29:38If you ever find yourself stuck in a car that's flowing, don't panic and don't try to open the door.

00:29:45The pressure from the outside water may be too strong.

00:29:48You'll only waste precious energy and this door won't open.

00:29:53The best way to escape is to go through the windows.

00:29:56Just lower them and run away while you're swimming.

00:29:59If you're not a good swimmer, you can try to create your own floating device like a plastic bag with air trapped inside.

00:30:09Make a knot in it and make sure it's tight.

00:30:13A plastic bottle would be a good option, but one won't be enough.

00:30:18You can also use a raincoat or one of these waterproof trousers, or even a trash can upside down.

00:30:24If you have a car problem at night, in the forest for example, you need light to see what you're doing.

00:30:30All you need is a bottle of water or a pitcher, or even a water bottle filled with water.

00:30:36All you need to do is attach it to a projector and voila!

00:30:39The water will diffuse the light so that you can see better.

00:30:42Perfect for setting up a fire or finding wood for a fire.

00:30:46Mason pots are very practical for preserving matches.

00:30:51If you're camping in a forest, it's really important to hide these matches in a dry and well-secured place.

00:30:58To make it even more practical, prepare a folding blanket.

00:31:02Fold it on the side of your matchbox and stick it on the lid of your glass pot.

00:31:07Before your next big adventure out in the open, make sure you've filled it with dark chocolate.

00:31:12Chocolate is probably the most delicious survival food, but it's also one of the best.

00:31:18It's rich in calories and it really helps you get back on your feet.

00:31:22In addition, you don't even need a fork, a plate or a fire to taste it.

00:31:27One last tip for today, my friends.

00:31:30Do you still have trouble lighting this fire?

00:31:32Don't look any further than this bag of chips that you've secretly hidden from your camping companions.

00:31:37Corn-based chips are everywhere these days.

00:31:40And in addition to their delicious taste and the strange color they give your fingers,

00:31:44they have another trick up their sleeves.

00:31:46You can use them to light a fire.

00:31:49This kind of chips is flammable, so make a little fire and keep this funny dry wood close at hand.

00:31:55Your fire will go out in a few seconds.

00:32:00From the outside, the surface of this lake looks like the rest of a disaster.

00:32:05Empty tree trunks emerge from the turquoise waters.

00:32:08The lake is surrounded by mountains, which makes it a calm but disturbing place.

00:32:13But those who dare to swim in these dangerous waters will soon discover a whole new world.

00:32:19This is not the beginning of a fairy tale.

00:32:21This is the real story of the Kayndi Lake, located in Sati, Kazakhstan.

00:32:26In 1911, an earthquake caused a major landslide in this place.

00:32:31The valley thus formed is filled with rainwater, practically submerging the forest.

00:32:36The trees located above the waters may seem very sad,

00:32:40but under the surface, they resemble an underwater forest.

00:32:45As the waters are crystalline most of the time, you can always see this fascinating view even from the banks.

00:32:51The frozen water of the lake complicates things and can sometimes be dangerous.

00:32:56Not to mention the algae, plants and trees submerged, which can quickly become potentially dangerous obstacles.

00:33:04I like hot and smoky baths, but this boiling lake I'm going to tell you about belongs more to the category of terrifying dreams.

00:33:12It is located on the island of Dominique, in the Caribbean, and its waters have a temperature between 82 and 92 degrees Celsius.

00:33:21And it's only on the edge, because no one has ever dared to reach the middle of the lake to measure its temperature in the center.

00:33:28It is true that the heat can drop from time to time, but you never know when these waters can start boiling again.

00:33:35The place is also dangerous because of the gases it releases, such as carbon dioxide.

00:33:40The smell is not pleasant, believe me, but it is mainly because of the sulfur present in the vaporous air.

00:33:46This lake, apparently calm, also has a dangerous surprise.

00:33:50Lake Monoun is located in the province of the West, in Cameroon.

00:33:54It is one of the rare erupting lakes on the entire planet, similar to a volcano.

00:33:59And most of the time, it does it without any warning.

00:34:03Its last eruption dates back to 1894, when it caused serious damage.

00:34:08The chemical mechanism of these lakes works like a soda can that you shake before opening it.

00:34:13Dangerous gases are at the bottom of the waters, so any disturbance to the surface can trigger their eruption.

00:34:20Lake Natron, in Tanzania, may be beautiful to look at because of its particularly reddish color.

00:34:26But it is certainly not a place where you want to swim.

00:34:30If the water is extremely salty, it also combines with algae, which, by the way, are responsible for the coloration.

00:34:37And it is not even what is most risky.

00:34:40Lake Natron has pH levels so high that they become corrosive.

00:34:44If you wet a piece of tinted fabric in this lake, it will soon be devoid of its color.

00:34:50These high levels of acidity can also cause serious problems to the human skin.

00:34:55Everything is not bad for some creatures, because Lake Natron is the only place where more than 2.5 million little flamingos live.

00:35:02These acidic and salty waters ensure their survival.

00:35:05It is therefore not surprising that they like to stay in the dams.

00:35:09The risk represented by Lake Nicaragua is less linked to chemistry than to its inhabitants.

00:35:14Located on the border of Costa Rica and Nicaragua, it is the largest freshwater lake in Central America.

00:35:21At first glance, you will not think that it can be dangerous.

00:35:25But because of the bull sharks that inhabit it, I advise you not to swim there.

00:35:31Sharks tend to be unpredictable and sometimes intimidating creatures.

00:35:35In addition, they are ready to eat everything if necessary.

00:35:38Scientists first believed that this species of shark was only found in this lake.

00:35:42But they quickly discovered that people had seen the same sharks in the Caribbean Sea.

00:35:47These amazing creatures not only travel a distance of more than 193 km to get here,

00:35:53but can also adapt to fresh water, which not all fish can do.

00:35:57The Great Blue Hole of the Belize can seem appealing to divers.

00:36:01I mean it is a beautiful blue and that it is quite close to the continent, at about 100 km.

00:36:07The problem is that under the surface of these calm waters is a series of complex tunnels

00:36:12which contain many types of corals and other wild species.

00:36:16It is these caves that make diving into the Great Blue Hole complicated.

00:36:20In addition, specialists have discovered that by diving into the waters,

00:36:24the creatures are less and less numerous.

00:36:26Why? Because of a hidden layer of hydrogen sulfide

00:36:30which extends over the entire width of the gulf.

00:36:33As there is no oxygen, no creature can survive at this depth.

00:36:39The Lagnier Lake is the largest lake in the state of Georgia.

00:36:42It hosts a large number of visitors every year, about 11 million,

00:36:46which is about as much as the Louvre Museum in Paris.

00:36:49Despite its popularity, many accidents occur on this lake

00:36:53and no one knows exactly why.

00:36:55One of the explanations could be under the surface of this mysterious lake.

00:37:00There is a lot of debris and gravel, as well as objects thrown at random,

00:37:05such as boats, garden chairs and even fishing line.

00:37:09All this creates a difficult underwater obstacle course.

00:37:12In addition to a low visibility at the surface of the lake,

00:37:15this place can become dangerous to navigate.

00:37:19The Grand Prismatic Spring, located in Yellowstone National Park,

00:37:23which extends over the states of Wyoming, Montana and Idaho,

00:37:27is another example of a lake where one has the impression

00:37:29that someone has done a Photoshop editing with the mountains.

00:37:32It is totally forbidden to swim here.

00:37:35It is 87 ° C in the center, almost close to boiling point,

00:37:40and the outermost ring reaches about 55 ° C.

00:37:44Hence the colors.

00:37:45As the center of the water is too hot for life to develop there,

00:37:49nothing disturbs the surface.

00:37:51The absence of living organisms creates this bright blue that almost looks like bread.

00:37:58On the small Mediterranean island of Cyprus,

00:38:01there is not much rain during the summer.

00:38:03This is why some areas of water become so dry

00:38:06that in some places they are covered with a layer of cooked salt.

00:38:10This is the case of the Salt Lake of Larnaca.

00:38:13Don't be fooled by this sinister landscape.

00:38:16These lands can easily become a trap.

00:38:19Indeed, it is easy to confuse a dry surface

00:38:22with a thin layer of salt that covers water or mud.

00:38:27In addition, under the crust there are salt crystals

00:38:30that can cause skin problems.

00:38:34The hole of Samae San is one of the most dangerous places

00:38:37to swim in all of Thailand.

00:38:39It is because it is very deep, up to 85 meters,

00:38:42and becomes extremely dark.

00:38:44In some places, when divers go down,

00:38:47they can even reach places where visibility is zero.

00:38:50It is not surprising that many people are disoriented

00:38:53and can no longer find their way up.

00:38:55The largest lake in Africa,

00:38:57and the third largest lake in the world,

00:38:59is called Lake Victoria.

00:39:01All these waters are not dangerous to humans.

00:39:04But some regions can quickly pose problems.

00:39:07Why?

00:39:08Partly because it has its own independent meteorological system.

00:39:12And this makes the weather really unreliable.

00:39:15It can go from clear and sunny to terrible in a few seconds.

00:39:19I mean, who would like to end up

00:39:21swimming in the middle of a storm, right?

00:39:23The Poustoyé Lake is located in Siberia.

00:39:26So I guess I don't need to tell you

00:39:29that these waters are extremely cold.

00:39:31But if you look at the lake,

00:39:33there is nothing extraordinary in these waters.

00:39:36Is this completely true?

00:39:38Most likely not.

00:39:39And people tend to avoid swimming here at all costs,

00:39:42even if they can resist ice water.

00:39:45So what makes the Poustoyé Lake so mysterious and dangerous?

00:39:49Well, nothing seems to want to live here.

00:39:52And scientists have not yet discovered why.

00:39:55They tried to fill the lake with many types of fish

00:39:58and various species of plants

00:40:00to see if they could survive in the waters.

00:40:02But the results were disappointing.

00:40:04Since we don't know exactly why

00:40:06it is so difficult to survive here,

00:40:08don't rush to get your swimsuit yet.

00:40:10It is preferable that you stay away.

00:40:12Hey, Pigé, you don't have to tell me twice.

00:40:17On the way to the Middle East,

00:40:19there is a large desert there,

00:40:21and at night, the darkness is complete,

00:40:24except for one very specific place.

00:40:26It is a large circle that shines with a bright orange light,

00:40:30the Darvaza crater.

00:40:32It is a giant gas burner.

00:40:34Years ago, geologists found gas here

00:40:37and they began to exploit it.

00:40:39But when they dug,

00:40:41they found an underground cavity.

00:40:43The cavity collapsed and formed a crater.

00:40:46It is as wide as half a football field

00:40:49and its depth is equivalent to the height of a five-story building.

00:40:53Gas began to escape cracks in the crater.

00:40:56And since animals often peed near this place,

00:40:59geologists decided to set fire to these gas flows

00:41:02to exhaust the source.

00:41:04They thought the fire would go out in a day or two.

00:41:07But if you visit the place today,

00:41:09you will find that this portal to the underground world

00:41:12is still burning, and it has been going on for almost 50 years.

00:41:15In 2013, a man descended to the bottom of the crater on fire for the first time.

00:41:20There are many samples collected,

00:41:22and scientists have found bacteria

00:41:24that can not be found anywhere else on Earth.

00:41:27It seems quite comfortable at the bottom of this eternal blaze.

00:41:31In 2009, in the city of L'Aquila in Italy,

00:41:34a man saw flickering lights dancing above a paved street.

00:41:38He immediately knew what to do

00:41:40and moved his family to a safer place.

00:41:43A few seconds later,

00:41:45a huge earthquake of magnitude 8.3 struck the region.

00:41:50His knowledge of strange lights saved his life and that of his family.

00:41:54So what are these mysterious warnings?

00:41:57For centuries, people have interpreted lights

00:42:00as something from another world.

00:42:02The scientific community did not take them seriously

00:42:05and put them on the account of an illusion of optics or pure imagination.

00:42:09But with the arrival of surveillance cameras and smartphones,

00:42:13the amount of evidence has increased enormously.

00:42:16The link was now obvious.

00:42:18Lights appeared and an earthquake occurred.

00:42:22Experts have finally begun to take things seriously

00:42:26and to dig to discover the truth.

00:42:29But after years of research,

00:42:31geologists are still not totally sure of the source of the lights.

00:42:35However, they have identified five types.

00:42:38Bright lightning that illuminates the sky,

00:42:40resembling thunderbolts or a very powerful flash of a camera.

00:42:45Rays in the sky that can look like luminous columns.

00:42:49Flames of different sizes that cross the ground.

00:42:53Diffuse glow above the mountains.

00:42:56And light balls that move slowly

00:42:59and can be misinterpreted as thunderbolts.

00:43:03Another atmospheric phenomenon just as little understood,

00:43:06these balls can float and explode,

00:43:09leaving behind a smell of sulfur.

00:43:11But unlike thunderbolts,

00:43:13these balls seem harmless

00:43:15if you don't take into account what they announce.

00:43:18In any case, experts still don't know

00:43:21how all these types of lights are related to earthquakes.

00:43:24Lights don't only appear before an earthquake strikes.

00:43:28Some have been reported during and after the earthquakes.

00:43:32They can also appear with other phenomena,

00:43:34such as meteorite falls, volcanic eruptions or aurora borealis.

00:43:39For now, scientists can only propose theories to explain the inexplicable.

00:43:44One of the most recent claims that lights are due to broken electrical lines

00:43:49during an earthquake.

00:43:51But this theory does not explain how the phenomenon was reported

00:43:54hundreds or even thousands of years ago.

00:43:57As in this ancient Chinese tale,

00:43:59according to which clouds resembling dragons

00:44:02appeared in the sky to warn of an upcoming earthquake.

00:44:06Or as by this ancient Roman historian

00:44:08who reported that huge lights resembling flames

00:44:12exploded just before a huge earthquake occurred.

00:44:16The theory of electric lines was therefore quickly dismissed.

00:44:20Another theory suggested that they were gases escaping.

00:44:24During an earthquake,

00:44:26underground rocks expand and retract under pressure and heat.

00:44:30This opens and closes small spaces between them.

00:44:33Different gases would make their way through these new openings.

00:44:37Radon, for example, can be released during a seismic activity.

00:44:41It can ionize air, making it electrically charged.

00:44:45But radon is not enough to create light sparks.

00:44:49This theory is tempting, but it must also be dismissed.

00:44:53One of the most accepted theories

00:44:55is that it could come from electricity rising from the ground.

00:44:59When underground rocks,

00:45:01those formed from magma in the depths of the earth,

00:45:04are constrained,

00:45:06they release ionized or electrically charged oxygen.

00:45:10They cross the surface and rise in the atmosphere,

00:45:13where they create a localized electric field.

00:45:16This can produce short flashes of visible light.

00:45:19Some are not even that fast and can last several minutes.

00:45:23Now imagine that you rode for hours at night.

00:45:27You did not have the opportunity to rest,

00:45:29so your attention is only on one wire.

00:45:32You stop and go out to stretch your legs.

00:45:35Then you look up at the sky and see a magnificent sunrise.

00:45:39But wait, there are three suns in the sky.

00:45:42You rub your eyes, but there are still three bright stars in the sky.

00:45:47No, our sun has not been torn into three pieces.

00:45:50It has not been visited by two other stars either.

00:45:53This is what is called a parallelepiped.

00:45:56It occurs mainly during frost storms.

00:45:58The small ice crystals in the sky distort the light.

00:46:02As a result, you can see three bright spots in the sky instead of one.

00:46:06This phenomenon is also called a halo.

00:46:09Usually, it is simply a circle around the sun.

00:46:13It is even possible to see a halo at night.

00:46:15Just look at a lamp and you will see a bright circle around it.

00:46:20Sometimes a halo can take a more fanciful shape.

00:46:23If there is a lot of ice in the air, the light is even more distorted.

00:46:27Just like in a room with a dozen mirrors.

00:46:30Then the halo can take the shape of a human eye.

00:46:34Because of this phenomenon, a false halo can also occur.

00:46:38When you look at the horizon, the halo points and the edge of the sun appears.

00:46:43A little more and ...

00:46:45The sun begins to dissolve in the sky.

00:46:48After a few minutes, it is night again.

00:46:51And only a minute later, the real sun shows its face.

00:46:55It is the same effect of light curvature that you have seen before with the three suns.

00:47:01But now, the light is curved vertically and not horizontally.

00:47:05And instead of the real sun, it is its reflection in ice crystals in the sky that has appeared.

00:47:11Let's continue.

00:47:12This cloud looks like a dinosaur.

00:47:14And this one looks like a cat.

00:47:16And this one ...

00:47:17Wow, it looks like these clouds are falling.

00:47:20Ah no, it's just a mammoth-type cloud.

00:47:24Their shape really gives them the look of pieces of clouds about to fall to the ground.

00:47:29It shouldn't happen, but you'd better start looking for shelter.

00:47:34Such clouds are the sign of the arrival of a violent storm.

00:47:38You need a lot of moist air with ice crystals at an altitude

00:47:41and dry air in the lower layers to create such clouds.

00:47:45Then, vertical air currents appear between these layers.

00:47:49And these currents make the clouds take the shape of a human brain.

00:47:53This giant cloud looks like a dome that will cover an entire city.

00:47:57And that's exactly what's going on.

00:47:59A huge cloud covers a vast area and then pours abundant rain on it.

00:48:05Sometimes, the front of such a cloud takes a strange shape, like in these photos.

00:48:09It looks like spaghetti or giant worms.

00:48:12This phenomenon is mainly observed in Australia, and it's called Morning Glory.

00:48:17It occurs because a strong wind twists parts of the cloud on both sides.

00:48:22And then, the huge cloud mass divides into thick bands.

00:48:27Sometimes, you can see in the sky a cloud made up of thousands of birds.

00:48:31They move quickly and change shape.

00:48:33They become more transparent, then denser and darker again.

00:48:38The birds seem to be participating in a kind of dance.

00:48:41But they don't do it for the crowds of spectators gathered at the bottom.

00:48:44They do it to protect themselves.

00:48:47When the birds gather in such a cloud, they intimidate the birds of prey.

00:48:51An eagle or a hawk would have a hard time choosing a single target among the infinite number of birds.

00:48:56In addition, they move quickly, covering each other.

00:49:00Fishes use each other as a shield in the same way.

00:49:04Such a cloud can frighten a hungry predator.

00:49:08Take sunglasses for the following.

00:49:10This phenomenon lasts about 40 minutes,

00:49:12and these clouds are the same as those that can cause the appearance of a frightening ring around the moon at night.

00:49:19Nature sends precursor signs of disasters in many different ways.

00:49:24J-shaped trees can mean that a landslide is coming.

00:49:29As the ground moves slowly, trees take this very photogenic shape.

00:49:33In this case, try to find a flat area and avoid approaching trees,

00:49:38except if you have superhuman strength.

00:49:40Another mystical phenomenon can be observed in the desert.

00:49:44A sandstorm.

00:49:46When the wind carries a lot of sand along a canyon, it starts to fall.

00:49:50Now, amplify this effect 100 times, and you get a sandstorm,

00:49:55like the one we can observe in Saudi Arabia.

00:49:58It's like Niagara Falls, except there's no water.

00:50:02Locals say that this phenomenon comes from an imminent sandstorm.

00:50:08Welcome to this desert island.

00:50:11How did we land here?

00:50:13No idea.

00:50:15Now we'll have to survive for a few days, and I'll teach you everything I know.

00:50:20Luckily, wherever I go, I'm always prepared for a situation like this.

00:50:25And in my magic bag, I have everything you'll need to survive.

00:50:30The first thing is, of course, a knife, which will be useful in many situations.

00:50:38Surrounded by the sea, you don't have any drinking water at your disposal.

00:50:42Oops, I didn't put any gourd in the water bag.

00:50:45But don't panic.

00:50:47Your most reliable source of water here are the coconuts.

00:50:51So you have to go get some.

00:50:54If you're lucky enough to find some green ones, you can cut them with a knife.

00:50:58It's relatively easy.

00:51:00But the problem is that they grow on top of the coconut trees.

00:51:04You're free to climb up there to catch some, but it won't be easy.

00:51:09Luckily, when the coconuts mature, they brown and fall off the trees.

00:51:14The water they contain stays drinkable for about nine months.

00:51:18So you can pick them up directly from the ground.

00:51:21The problem is that they can be quite difficult to open.

00:51:24But if you're lucky enough to have a screwdriver, it'll be a lot easier.

00:51:29A simple stone can also allow you to break a coconut.

00:51:33But don't forget to wrap it in a napkin or clothes beforehand.

00:51:38Don't forget that you can't drink as many coconuts as you want.

00:51:42Don't drink more than the content of five brown coconuts a day,

00:51:46or you risk having a stomach ache.

00:51:48By the way, it's the same for green coconuts.

00:51:51After drinking a brown coconut, don't throw it away too quickly.

00:51:55You can scratch the white flesh and eat it.

00:51:57It's completely edible.

00:52:00Well, I also forgot the bowls.

00:52:02But the coconut can still be useful to us,

00:52:05since it can be transformed into a bowl.

00:52:07After cutting it, you'll have two bowls-shaped halves.

00:52:12Start by removing all the white from the inside,

00:52:15until only the shell remains.

00:52:18This will be your new bowl, but we're going to make it prettier.

00:52:22Scrape the peels with a knife,

00:52:24then rub it with sand to make it smoother.

00:52:28The last thing to do is to polish it with the flesh of the coconut.

00:52:33The oils it contains will make your bowl shine.

00:52:38Then, the most important skill is, of course, to make a fire.

00:52:42I put some briquettes and a box of matches in the bag to make things easier.

00:52:46But you'll never be a real survivor

00:52:48if you don't know how to light a fire without briquettes or matches.

00:52:52You have to find a curved piece of wood

00:52:54and tie a rope like this to it so that it looks like an arch.

00:52:59If you don't have a nylon rope, a shoelace will do the trick.

00:53:04So, when you go on a trip, wear shoelaces.

00:53:08Then, find a piece of hard, dry wood.

00:53:11This will be your fuse.

00:53:13Wrap the rope of the arch around the fuse to create friction.

00:53:18The fuse can be attached to a board with a notch to hold it in place.

00:53:23You'll also need another piece of wood,

00:53:25generally called a hand block.

00:53:28It must have a carved hollow,

00:53:30which will allow you to create friction more easily.

00:53:34Here's how it works.

00:53:36The board holds the fuse,

00:53:38and you turn the rope around it like this.

00:53:41On top of it, you hold the fuse with your hand block.

00:53:45Then, you start moving the arch by wrapping it around the fuse to create friction.

00:53:50It will start to heat up, and you'll end up with an ember.

00:53:54You then have to move it carefully towards a pile of amadou

00:53:57and blow on it to try and light the fire.

00:54:00It will be difficult the first time,

00:54:02but once you've understood,

00:54:05you'll be able to light your fire in less than five minutes.

00:54:10Now that we have the fire, we need food.

00:54:13The easiest choice is to go fishing.

00:54:16In my magic backpack, I have a fishing kit.

00:54:19It's just a little box with hams and threads,

00:54:23but it's going to help us a lot.

00:54:26But you still have to practice.

00:54:29If you manage to catch a fish,

00:54:31you'll have to cook it,

00:54:33and that's the easiest part now that you have a fire.

00:54:36Wrap your fish in coconut leaves,

00:54:39tie it up with a string,

00:54:41and put it on the embers of your fire.

00:54:43Wait about twenty minutes,

00:54:45and before you eat it, make sure it's well cooked.

00:54:48All you have to do is pierce the fish with a fork or toothpick

00:54:52and gently twist it to the thickest spot.

00:54:55If the fish is cooked, it comes off easily.

00:54:57Bon appétit!

00:55:00The sun is setting.

00:55:02You have to get ready for the night.

00:55:05During the day, you have to make a shelter

00:55:07with sticks and palm leaves.

00:55:10Pieces of bark can be used as ropes,

00:55:13but it is also advisable to walk along the shore

00:55:16and see what is rejected by the waves.

00:55:18There can be a lot of waste,

00:55:20and some of them can be useful.

00:55:24If you go to an island,

00:55:26you have to bring gadgets that will help you not to get lost.

00:55:29Here I have a multifunctional water-resistant watch

00:55:32that I bought on Amazon.

00:55:36In addition to giving the time,

00:55:38it contains a compass, a thermometer,

00:55:40a grater, a whistle,

00:55:42and even a fire starter.

00:55:45It's true, it's not worth giving yourself all this trouble with your pieces of wood,

00:55:49but you had to learn!

00:55:51In short, take the watch with you if you go to the jungle.

00:55:54You now need materials for your shelter.

00:55:57Sticks, bark, and palm leaves,

00:55:59which are more difficult to tear from the tree than you imagine.

00:56:03Dry leaves on the ground are also convenient.

00:56:07Make the roof of the shelter with palm leaves

00:56:09and also put them on the ground to be able to lie down.

00:56:13But be careful!

00:56:15Make sure that the leaves you use

00:56:17do not hide snakes, spiders, or scorpions.

00:56:20You don't want any of that in your bed!

00:56:24On the other hand, at night,

00:56:26insects and many other creatures come out,

00:56:29and they will be very happy to join you in your shelter.

00:56:33The fire and the fireplaces around your shelter

00:56:35will help to keep at least some of them away.

00:56:39But others can still sneak up

00:56:41and climb under your clothes,

00:56:43climb on you and sting or bite you.

00:56:46So it's time to use the magic water bag.

00:56:49I have a survival sleeping bag here.

00:56:52As it only measures 10 cm long when it is folded,

00:56:55it does not take up much space,

00:56:57but it is resistant to tearing, waterproof,

00:57:00and keeps the heat of your body inside.

00:57:03In addition, its seams are sealed,

00:57:05which prevents water, wind, and insects from entering.

00:57:09You can also find it on Amazon.

00:57:12Do not make your fire right in front of the entrance to your shelter,

00:57:15because you risk breathing smoke all night.

00:57:22There you go, you're ready!

00:57:24But here are a few additional tips for survival.

00:57:28Your phone, which is probably the only thing you'll have with you,

00:57:31is rather useless here.

00:57:33But not entirely.

00:57:35The screen can be used to reflect the light from the sun or the moon

00:57:39to send SOS signals.

00:57:42Secondly, if you don't have a lot of water in reserve,

00:57:46try to keep your body cool.

00:57:50Go in the water from time to time to avoid overheating and dehydration.

00:57:56And of course, always keep a first aid kit with you.

00:58:01This is the last survival accessory I have in my water bag,

00:58:04also found on Amazon.

00:58:06It is a water-resistant bag containing a pair of scissors,

00:58:10bandages, a tweezers, bandages, and other useful things.

00:58:14Enjoy your survival,

00:58:16hoping that you are now better armed in case of need.

00:58:22You're finally there!

00:58:23After all this training, you are ready for your first parachute jump.

00:58:27Full of confidence, you head for the door of the plane

00:58:30when it reaches an altitude of 3,700 meters.

00:58:33You throw yourself into the air, but at the last second,

00:58:36you hear the instructor shouting something to you.

00:58:38I didn't check your parachute!

00:58:40You don't hear it when you're already away from the plane.

00:58:43You only see his worried expression.

00:58:45It looks like something is not going as planned.

00:58:47You pull on the handle to release the parachute,

00:58:50but it doesn't deploy properly and opens in a kind of big bubble.

00:58:54You start spinning faster and faster.

00:58:56You've spun it, but you have to grab it again.

00:58:59Every second is crucial,

00:59:01and from this altitude, you have less than a minute to act.

00:59:04You adopt the Bowman formation

00:59:06by spreading your body with your arms and legs to form an X.

00:59:10This creates a little more drag,

00:59:12which allows you to stabilize a little.

00:59:16Now you have more time to deploy your parachute.

00:59:19Still stunned by the spinning,

00:59:21you try to remember where it is.

00:59:23You grab what you think is the right strap and pull hard.

00:59:26Oh no, it's a leg strap!

00:59:28You've loosened the strap on your back,

00:59:30and now you're starting to slip out of the straps.

00:59:33It's not your lucky day.

00:59:34You hang on and tighten the leg strap.

00:59:36Oh yes, the security procedure is coming back to you now.

00:59:39Step 1.

00:59:40Get rid of the main parachute using the red handle.

00:59:43It's done.

00:59:44Now you're free to fall again.

00:59:45Step 2.

00:59:46Now find the silver handle of the trigger cable

00:59:49to eject the rescue parachute.

00:59:51You have to hurry.

00:59:52The ground is getting closer at high speed.

00:59:54Where is this handle?

00:59:55Oops, it's here!

00:59:56Located on the left of your chest.

00:59:57You pull on it hard.

00:59:59Flop!

01:00:01The parachute unfolds, stretches, and slows you down.

01:00:04You are now relieved.

01:00:06Is your breath cut off?

01:00:07Is your heart beating fast?

01:00:08Oh yes!

01:00:09Finally, you can enjoy the view

01:00:11for about 10 seconds before landing on the ground.

01:00:14Very slowly, the feet first.

01:00:16It looks fun, doesn't it?

01:00:17You can do that again whenever you want.

01:00:20As always, instead of taking the stairs,

01:00:22you use the elevator.

01:00:24The chances of an accident are 1 in 10 million.

01:00:27You are 10 times more likely to be hit by lightning.

01:00:30But today, you are unfortunately in this unlucky elevator.

01:00:33As you descend from the 5th floor,

01:00:35the pulley system encounters a problem.

01:00:37A cable breaks and the elevator starts to fall.

01:00:40Quickly, you lie on your back,

01:00:42placing one arm around your head to protect it from the impact

01:00:45and the other arm on your face

01:00:47to protect it from possible objects falling.

01:00:49You spread your legs evenly.

01:00:51In just a few seconds, you prepare for the impact.

01:00:54It crashes and the debris from above falls around you.

01:00:58Well done, you avoided the injuries.

01:01:01But is it possible to alter the force of the impact by jumping?

01:01:05Think about it.

01:01:07If you jumped too early, it would be even more severe

01:01:10because your speed would increase in the descent.

01:01:13And if you jumped too late,

01:01:15the speed of your jump up would make you hit your head

01:01:18because the elevator would have stopped.

01:01:20You would have to jump at the precise moment of the impact

01:01:23for your own speed to be of any efficiency.

01:01:26And without the ability to see through the steel,

01:01:28it would be a matter of luck.

01:01:30It is therefore preferable to use the method where you lie down.

01:01:33Good luck anyway.

01:01:35You go to work by car

01:01:37passing on the same bridge as every other day.

01:01:40Today, there is more traffic than usual.

01:01:42You are stuck in a traffic jam.

01:01:44The bridge starts to crack.

01:01:46Unfortunately, it is possible that bridges with a defective structure

01:01:49collapse under excessive weight.

01:01:51And that is exactly the case.

01:01:53When the bridge collapses in the river,

01:01:55your car starts to float.

01:01:57The water slowly rises around you while it starts to flow.

01:02:00You try to stay calm and take a deep breath.

01:02:03You have up to two minutes before the car completely flows.

01:02:06You have to act quickly and lower the window.

01:02:09By removing your seat belt,

01:02:11you notice that the water has risen above the windows.

01:02:14You try to open them,

01:02:16but they are completely stuck because of the pressure.

01:02:18You missed your chance.

01:02:20You sink even more and you think about opening the door.

01:02:23It is better not to do that.

01:02:25It will make your vehicle flow even faster.

01:02:27In addition, it will be even more dangerous to get out.

01:02:30The car touches the bottom and the water slowly penetrates it.

01:02:33You try to open the door,

01:02:35but the pressure is so intense that it does not move.

01:02:38You think about the water coming in.

01:02:40Maybe if you expected there to be enough water inside,

01:02:43it could regulate the pressure, allowing your door to open.

01:02:46But with the little air that would remain,

01:02:48and if the doors still do not work,

01:02:50it would be too big a risk.

01:02:52Your only choice is to break the window.

01:02:54It is easily achieved thanks to the pressure of the water,

01:02:57which spreads quickly inside.

01:02:59You take your last great inspiration

01:03:01by holding on to the frame of the window.

01:03:03The car fills up quickly when the flow of water stops suddenly.

01:03:06You slip through the window

01:03:08and you put your feet on the car.

01:03:10You push up and you swim to the surface.

01:03:13Remember to never drive with you.

01:03:17Then you go hiking in the forest

01:03:20and you find the ideal place to admire the sunset.

01:03:23You take a picture and it is superb.

01:03:25But wait, in which direction to go to get to the camp?

01:03:28It's getting dark and you have no idea how you got here.

01:03:31You check your phone.

01:03:33It has a card, so everything will be fine, right?

01:03:35But you took too many pictures of nature

01:03:38and your battery is exhausted.

01:03:40You can survive up to three hours without shelter in bad weather.

01:03:43You can stay without water for three days

01:03:45and up to three weeks without food.

01:03:48You must consider your next actions in order of importance.

01:03:51Your first task is to build a shelter.

01:03:54You press a large stick against a tree to support a roof.

01:03:57Then you build two walls on the sides,

01:04:00thus forming a solid frame.

01:04:02There are a lot of leaves in the forest

01:04:04and you cover your roof with piles of leaves for insulation.

01:04:07Inside, you build a nice mattress of leaves.

01:04:10You enter and wait for the morning, hoping to have a restorative sleep.

01:04:13You slept terribly badly,

01:04:15but you don't really have time to leave them a rotten review

01:04:18on your favorite booking site.

01:04:20Your next task is to find water.

01:04:22You follow a slope of the field to finally reach a stream.

01:04:26Clean water, check!

01:04:28You keep walking in the direction of the current,

01:04:30hoping it will lead you to a river.

01:04:32You are more likely to find people and traces of civilization

01:04:35along large stretches of water.

01:04:37The hours go by and your stomach growls.

01:04:40You look around you for something to eat.

01:04:42There are bees and mushrooms, but you don't recognize them.

01:04:45It is better not to eat anything if you don't know all about its toxicity.

01:04:50You look for insects under old trunks and branches.

01:04:53You have found a few grains of flour that can be eaten raw.

01:04:56Some insects, when cooked,

01:04:58can be an important source of iron, protein and vitamin B12.

01:05:02You look at them and you quickly lose your appetite.

01:05:04We'll see about that later.

01:05:06Finally, the stream throws itself into a river

01:05:08and just in front of it is a bridge, not the one that fell earlier.

01:05:11You seem out of business.

01:05:13You throw away these disgusting insects

01:05:15and you embark on your next adventure,

01:05:17find a restaurant.

01:05:18Well, we will never go camping together either.

01:05:22You are now walking in a field.

01:05:24The wind rises and, not far from there,

01:05:26a tornado forms.

01:05:28You start to move away from it by running,

01:05:30but you can't distance it

01:05:32because it moves up to 100 km per hour.

01:05:34Your main concern is not the tornado itself,

01:05:37but the trees and buildings that the tornado carries,

01:05:40turning them into dangerous flying objects.

01:05:42They are driven at a crazy speed

01:05:44because they are carried by fast winds

01:05:46that can approach you at 500 km per hour.

01:05:48You are looking for shelter, but there is none.

01:05:51Your only option is a ditch

01:05:53that is not surrounded by trees or other breaking objects.

01:05:56You lie down in the ditch

01:05:58and cover your head with your jacket,

01:06:00holding it with your arms to protect you.

01:06:02Lying flat, with this thunderous noise all around you,

01:06:05you feel like you are in a giant jet engine.

01:06:08It's a terrifying sound,

01:06:10but fortunately, you are not on the way to the tornado.

01:06:13You can hear the little debris whistling above your head

01:06:16and many of them fall all around you with a deafening noise,

01:06:19but fortunately, they spare you.

01:06:21Everything becomes calm.

01:06:23You stay lying down, controlling your breathing

01:06:25and trying to relax.

01:06:27You don't get up, not yet,

01:06:29because the worst is yet to come.

01:06:32Tornadoes can last a few seconds to more than an hour.

01:06:35You don't take any risks

01:06:37and you stay in your ditch all the time.

01:06:39Then, finally, when it is clear that it is gone,

01:06:42you take off your jacket and go home.

01:06:45In the meantime, you are really in a hurry.

01:06:48So I delete you from my contacts

01:06:50and I delete you from my list of friends on social networks.

01:06:52Well, I'll do all this as soon as I get out of the hospital.

01:06:55Welcome, dear guests, and welcome to the Saint-Paquarium.

01:06:58Here you will be able to admire the most dangerous marine and oceanic creatures,

01:07:02but don't let yourself be misled by what I said.

01:07:05It is highly possible that you met one of these underwater creatures

01:07:08during a banal walk on the beach.

01:07:11So look at them carefully right now

01:07:14and you could avoid the worst.

01:07:17Is it a fish or an old pebble?

01:07:20What you are observing is commonly called the stone fish

01:07:23or also known as the intimate ones.

01:07:27If you like diving and observing the seabed,

01:07:30you may have already met one without even noticing it.

01:07:33Its appearance makes it almost impossible to distinguish it from any other stone

01:07:37because of its gray coloration and its spotty appearance.

01:07:41Especially if your diving glasses are a little fogged up.

01:07:44Finally, you would better be careful

01:07:46because otherwise the consequences could be devastating

01:07:49since stone fish are among the most venomous there are.

01:07:53Although some types of stone fish are known to live in rivers,

01:07:56most of them live in coral reefs near the tropics of the Pacific and Indian Oceans.

01:08:01The spines of their dorsal fins, in the shape of needles,

01:08:04stand up when they feel disturbed or threatened

01:08:07and inject the poison they contain.

01:08:09The most common reason for stone fish bites

01:08:11is that swimmers walk on them without realizing it.

01:08:14However, it is not necessary to be in the water to be bitten.

01:08:17As they can survive out of the water for up to 24 hours,

01:08:20you should also be careful where you walk when you go to the beach.

01:08:24People who have been bitten by stone fish

01:08:26describe it as an extremely painful experience.

01:08:29This venom can cause infections

01:08:31and in some cases it is known to have resulted in a state of shock or even paralysis.

01:08:36It may seem surprising, but despite its bad reputation,

01:08:39stone fish is quite edible if it is properly prepared.

01:08:43When the fish is cooked, its venom decomposes

01:08:46and if its dorsal fins, which are the main source of its venom, are removed,

01:08:50the raw stone fish can also be served as sashimi.

01:08:55This creature may look like it came out of a sci-fi movie,

01:08:58but it is very real.

01:09:00Say hello to the blue-chinned octopus.

01:09:03Don't be fooled by its small size,

01:09:05which can go from 12 to 20 cm,

01:09:07counting the tentacles,

01:09:09because these little animals are full of venom,

01:09:11capable of affecting up to 26 people in a few minutes.

01:09:15Like stone fish,

01:09:17blue-chinned octopuses are found in the Pacific and Indian Oceans,

01:09:21from Japan to Australia.

01:09:23They generally live in the coral reefs

01:09:25and rocky areas at the bottom of the seas.

01:09:28They can also be found in residual seas,

01:09:30in marine herbivores and lidalges.

01:09:32Blue-chinned octopuses are not aggressive by nature.

01:09:35When they are not looking for food,

01:09:37like crabs and shrimps,

01:09:39or looking for a partner,

01:09:41they often hide in marine reefs,

01:09:44It is only if they are provoked,

01:09:46swallowed or grabbed in the palm of your hand

01:09:48that they become dangerous for humans.

01:09:50When threatened,

01:09:52they take a bright yellow color

01:09:54and iridescent blue rings

01:09:56appear on their entire body

01:09:58as a warning to their potential predators.

01:10:00Their sting usually goes unnoticed,

01:10:02so you can't realize you've been stung

01:10:04before it's too late.

01:10:06The venom of a blue-chinned octopus

01:10:08can cause dizziness,

01:10:10and finally paralysis.

01:10:12So it's better to keep your hands to yourself

01:10:14and slow down if you see one.

01:10:18No, it's not a bouquet of flowers,

01:10:20so don't hesitate to pick it up

01:10:22and feel one of its pinkish cubes.

01:10:24What you see in front of your eyes

01:10:26is a marine animal called the flower bear.

01:10:29It may look beautiful,

01:10:31but don't be fooled by its appearance.

01:10:33It was named the most dangerous bear

01:10:35in the Guinness Book of Records in 2014.

01:10:37Flower bears live in the tropical areas

01:10:39of the Indo-Pacific basin

01:10:41and generally live in coral reefs,

01:10:43rocks, sand, and marine shrubs

01:10:45from 0 to 90 meters deep.

01:10:50Their most remarkable feature

01:10:52is their pedicellar,

01:10:54which are defensive organs in the shape of claws,

01:10:56which are also found in starfish.

01:10:58What sets them apart from all the other bears

01:11:00is the fact that their pedicellar

01:11:02are, as their name suggests, in the shape of flowers,

01:11:04and generally pinkish-white,

01:11:06yellowish-white,

01:11:08with a purple central point.

01:11:10Hidden under these flowers,

01:11:12they also have short,

01:11:14mossy spines.

01:11:16Although many bears

01:11:18deliver their venom through these spines,

01:11:20flower bears do it

01:11:22through their pedicellar, or flowers.

01:11:24If they are not disturbed,

01:11:26the ends of these flowers

01:11:28generally have an elongated,

01:11:30round-cut shape.

01:11:32Their surface has tiny sensors

01:11:34with which they can detect danger.

01:11:36And when they come in contact

01:11:38with such threats,

01:11:40these flowers close up immediately

01:11:42and start injecting their venom.

01:11:44What is curious is that

01:11:46the small fangs of these flowers

01:11:48can sometimes detach from their spines,

01:11:50cling to the point in contact,

01:11:52and continue to inject venom

01:11:54for hours on end.

01:11:56It looks like a giant ice flake

01:11:58with a melted raspberry, doesn't it?

01:12:00You'd like that,

01:12:02except it's a lion's mane jellyfish,

01:12:04also called capillary cyanide.

01:12:10They are known to prefer cold waters,

01:12:12which is why they are found

01:12:14mainly in the Arctic Ocean,

01:12:16North Atlantic and North Pacific.

01:12:18But it is also possible

01:12:20to see them around the British Isles

01:12:22and in the Scandinavian waters.

01:12:24The lion's mane jellyfish

01:12:26is one of the largest species

01:12:28known to jellyfish.

01:12:30Their long tentacles,

01:12:32which can reach a length

01:12:34of 3 meters,

01:12:36and although the average diameter

01:12:38of a lion's mane jellyfish's bell

01:12:40is about 50 centimeters,

01:12:42it can sometimes reach a diameter

01:12:44of more than 2 meters.

01:12:46The largest never-seen lion's mane jellyfish

01:12:48was seen in 1865

01:12:50off the coast of Massachusetts.

01:12:52It was estimated to have tentacles

01:12:54about 36 meters long

01:12:56for a diameter of more than 2 meters.

01:12:58To give you an idea of its size,

01:13:00it was longer than a blue whale.

01:13:02Lion's mane jellyfish

01:13:04hunt by spreading their tentacles

01:13:06all around, creating a trap

01:13:08to catch their food.

01:13:10As it has about 1,200

01:13:12stinging tentacles,

01:13:14it would take an extremely lucky fish

01:13:16to hope to escape them.

01:13:18The sting of a lion's mane jellyfish

01:13:20generally does not present

01:13:22a deadly danger,

01:13:24but you still have to avoid

01:13:26swimming through its tentacles

01:13:28If you see a lion's mane jellyfish

01:13:30on the beach,

01:13:32it is better not to touch it

01:13:34because it can sting you for a long time

01:13:36after being thrown on the shore.

01:13:38Fun fact, the lion's mane jellyfish

01:13:40appears in the story of Sherlock Holmes

01:13:42as a suspect.

01:13:44But don't worry,

01:13:46we won't give any spoilers.

01:13:48The last marine animal you see

01:13:50is a sea snake.

01:13:52Yes, they are different from eels.

01:13:54There are 69 species

01:13:56Most of them are found

01:13:58in the tropical and subtropical waters

01:14:00of the Indian and Pacific oceans.

01:14:02And they have existed for millions of years.

01:14:04To make things easier,

01:14:06scientists have separated

01:14:08all the different species of sea snakes

01:14:10into two categories,

01:14:12real sea snakes and striped tricots.

01:14:14While real sea snakes

01:14:16spend almost all their time at sea,

01:14:18striped tricots can also crawl

01:14:20on the ground.

01:14:22If you see a snake on the beach,

01:14:24you can determine if it is a sea snake

01:14:26by looking at its tail.

01:14:28If it looks like a striped tricot,

01:14:30then it is a sea snake.

01:14:32But make sure to keep your distance

01:14:34in both cases.

01:14:36All sea snakes must surface regularly

01:14:38to breathe because they have no branches.

01:14:40That's why you could run into one

01:14:42while you're swimming.

01:14:44If that happens,

01:14:46you'd better get away as soon as possible

01:14:48because most sea snakes have more venom

01:14:50than the average cobra or crocodile.

01:14:52And because of their venom,

01:14:54bites are quite rare.

01:14:56Another fact about sea snakes

01:14:58is that they are the only reptiles

01:15:00to give birth in the ocean.

01:15:02Most sea snakes keep their eggs in their eggs

01:15:04and give birth to small snakes

01:15:06that are almost already formed while swimming.

01:15:08But striped tricots don't do that.

01:15:10They go to the mainland

01:15:12to lay their eggs.

01:15:14Do you remember the stone fish

01:15:16at the beginning of our visit?

01:15:18They are hunted by sea snakes.

01:15:20Well, here's the scenario.

01:15:22You go home after a night out

01:15:24with your friends.

01:15:26Then you hear footsteps behind you.

01:15:28You turn around

01:15:30and you see someone walking in your direction.

01:15:32You say to yourself,

01:15:34is he following me?

01:15:36If this scenario happens to you one day,

01:15:38here's what you have to do.

01:15:40Start walking a little faster.

01:15:42If you hear the footsteps of the person

01:15:44catching up to you,

01:15:46then your suspicions are founded.

01:15:48It's time to turn.

01:15:50Four right turns are enough

01:15:52to bring you back to your starting position.

01:15:54This will confirm that the person is after you

01:15:56since she has no reason to turn around

01:15:58and this will give you a chance to disappear.

01:16:00As soon as you turn,

01:16:02start running until your pursuer stops.

01:16:04If people pass by,

01:16:06you can say out loud,

01:16:08hi, and pretend they're your friends.

01:16:10Tell them someone is following you

01:16:12and ask them if they can accompany you

01:16:14to a more public place

01:16:16or find another way to get home.

01:16:18Don't go home

01:16:20when you're being followed,

01:16:22even if your new benefactors

01:16:24offer to help you get home.

01:16:26Your pursuer will then know where you live

01:16:28and will be able to come back later

01:16:30or wait for you to leave your home.

01:16:32But let's suppose

01:16:34there's no one in the street

01:16:36and this silhouette is still behind you.

01:16:38If you're wearing a hooded sweater,

01:16:40put the hood inside to hide it.

01:16:42If your hair is raised in a ponytail or bun,

01:16:44let them fall down while you walk.

01:16:46It will be more difficult for your pursuer

01:16:48to catch all your hair

01:16:50or to take off your clothes

01:16:52if he has nothing to hang on to.

01:16:54Now you have to sow it.

01:16:56If you've just walked away

01:16:58from a very busy street,

01:17:00you can pretend you've forgotten something

01:17:02by tapping your pockets.

01:17:04Say out loud,

01:17:06Arf, where's my wallet?

01:17:08While you're doing this,

01:17:10start walking even faster

01:17:12so you can follow someone

01:17:14who's running towards a busy street.

01:17:16And she probably won't run after someone

01:17:18who doesn't have her wallet.

01:17:20Never say you've lost your keys.

01:17:22You'll need them later.

01:17:24Don't take out your phone

01:17:26to send messages.

01:17:28The light on the screen

01:17:30will make it harder

01:17:32for your eyes to adapt to the darkness.

01:17:34In addition, looking at your phone

01:17:36will slow you down.

01:17:38Look around you

01:17:40to identify the name of the street,

01:17:42the number of houses,

01:17:44and the store or building

01:17:46in the area.

01:17:48You'll need these details later.

01:17:50If you can't escape

01:17:52and the street you're in

01:17:54seems endless,

01:17:56turn around and look at your pursuer.

01:17:58Look at his clothes, his eyes,

01:18:00his height and his age.

01:18:02Black hooded sweatshirt,

01:18:04mauve trousers,

01:18:06green baseball cap.

01:18:08You'll also send a clear message to this person.

01:18:10Yes, I can see you.

01:18:12Unintentional people

01:18:14count on the element of surprise.

01:18:16With a prolonged and intense visual contact,

01:18:18you remove this element.

01:18:20They'll be taken by surprise

01:18:22and won't see you as a target anymore.

01:18:24Be sure of yourself,

01:18:26shoulders back, chin up.

01:18:28Don't look lost or nervous.

01:18:30You'll give the impression of

01:18:32« I know what I'm doing »

01:18:34and they really don't like that.

01:18:36Don't be afraid to approach

01:18:38and ask for something.

01:18:40Keep a constant visual contact.

01:18:42If he asks you for his way,

01:18:44don't look down

01:18:46and don't look away to take your phone.

01:18:48You must avoid any distraction.

01:18:50Just tell him you don't know the way.

01:18:52His request is already suspicious.

01:18:54Who doesn't have a phone with GPS nowadays?

01:18:56If you carry books or groceries,

01:18:58be ready to drop them

01:19:00as soon as you feel something is wrong.

01:19:02Hanging on heavy objects will slow you down.

01:19:04Now you'll need your keys.

01:19:06Put them in your palm,

01:19:08the teeth of the keys

01:19:10exceeding your fist.

01:19:12If things go wrong,

01:19:14you'll have something sharp to defend yourself

01:19:16and you'll be able to run away.

01:19:18Don't stay silent.

01:19:20Make some noise when trying to leave

01:19:22and shout « au feu » rather than « à l'aide ».

01:19:24People react more often to this

01:19:26than a simple « à l'aide » call.

01:19:28Nobody wants to chase someone

01:19:30who shouts « à tu tête »

01:19:33If someone follows you from a distance,

01:19:35take out your phone and call the police.

01:19:37That's when you must know all the details

01:19:39about the street you are in,

01:19:41your location and the buildings around you.

01:19:43Stay on the phone with the dispatcher

01:19:45and follow his instructions.

01:19:47Another possible scenario

01:19:49is that someone follows you in public.

01:19:51If this happens,

01:19:53try to go to a supermarket

01:19:55or any place where you can sneak into the crowd.

01:19:57If your jacket is a different color

01:19:59than your shirt,

01:20:01take it off.

01:20:03It will be more difficult for this person

01:20:05to identify you.

01:20:07If you enter a restaurant or a café

01:20:09and your pursuer is determined,

01:20:11he will enter and wait for you.

01:20:13A possibility is to go directly to the toilet

01:20:15and stay there for 5 to 10 minutes.

01:20:17He may lose patience and leave.

01:20:19If you go out and he is still there,

01:20:21stand in line,

01:20:23order something

01:20:25and let one of the staff members know

01:20:27that you are being followed.

01:20:29If you order something,

01:20:31they will keep an eye on you.

01:20:33Take your order and sit down.

01:20:35Use your phone to let your family

01:20:37or friends know where you are

01:20:39so that they can come and pick you up

01:20:41or keep you company.

01:20:43While you wait,

01:20:45try these tips.

01:20:47Bow.

01:20:49If the person bows too,

01:20:51it means that they are watching you.

01:20:53The bowing is visually contagious.

01:20:55Pretend to look at your watch.

01:20:57If you are being followed,

01:20:59leave the café and walk a bit

01:21:01until they lose sight of you.

01:21:03Then, as soon as they leave,

01:21:05go back to the café.

01:21:07There is no reason for you to go back

01:21:09unless they were following you

01:21:11with a fixed idea.

01:21:13When someone comes looking for you,

01:21:15ask the staff to point you

01:21:17at the back door for safety.

01:21:19Avoid walking alone.

01:21:21If you do,

01:21:23stay in the streets and always pay attention

01:21:25You know, everything that is beyond the screen of your phone.

01:21:28Relax, I'm kidding.

01:21:30The conclusion?

01:21:32I hope none of this will happen to you,

01:21:34but the fact of being prepared will give you confidence in case.

01:21:40That's it, it's the end.

01:21:42You pack everything you can in the bags you can find.

01:21:45Food, clothes, toiletries.

01:21:48The news scrolls in the background.

01:21:50The red alerts flash on the screen.

01:21:53You look at your watch and you know it's time.

01:21:55You haven't even finished packing yet.

01:21:58You rush out of your house

01:22:00and you see people carrying suitcases in a hurry.

01:22:03You get in your car and you leave as fast as possible

01:22:06avoiding people running everywhere.

01:22:09You arrive at an isolated place in the woods.

01:22:12You've been working on your bunker for years.

01:22:15It is able to resist the worst conditions.

01:22:18Tornadoes, hurricanes, volcanoes and,

01:22:21with a little luck, asteroids.

01:22:24You run to the bunker, hidden behind some bushes and some trees.

01:22:28There is no way anyone knows he is there.

01:22:31The door looks like a bank safe with a huge amount of money.

01:22:36Behind, a ladder that goes down 9 meters through a dark tunnel.

01:22:42The first thing you do is turn on the power.

01:22:45Everything works with robust batteries,

01:22:47powered by the solar panels above,

01:22:49not to mention the emergency generator powered by fuel.

01:22:53With a little luck, you won't need to use it,

01:22:56but two precautions are better than one.

01:23:00The entire bunker is made of concrete and steel

01:23:03to maintain maximum durability.

01:23:06The walls are several tens of centimeters thick.

01:23:09You can finally breathe a sigh of relief

01:23:11because you reached it just in time.

01:23:14You suddenly feel the ground vibrating.

01:23:16The walls are shaking.

01:23:18Fear grips your chest when all the doors of the cupboards open

01:23:22and the stored food starts to crumble.

01:23:25Did you miscalculate? Is this thing going to hold?

01:23:29The asteroid has fallen far from where you are.

01:23:32But it looks like it fell right above you.

01:23:35The noise is deafening and the shock waves seem to never end.

01:23:39The light is fading.

01:23:41The dust in suspension disturbs your vision and fills your lungs.

01:23:44You grab a mask with one last thought.

01:23:47That's it, the bunker is going to collapse.

01:23:50At least I tried.

01:23:53A month later.

01:23:55You prepare breakfast after another long night.

01:23:59Fortunately, you have more than enough food.

01:24:02And what a variety!

01:24:04Tuna, dried beef, beans, sardines.

01:24:08And then there are the dry products.

01:24:10Rice, powdered milk, pasta, noodles, and even sweets.

01:24:15Honey and chocolate.

01:24:17You also got sodas and fruit juices.

01:24:20But water is the majority of the liquids you stored.

01:24:24This place is and will be your home for...

01:24:27Who knows?

01:24:28Weeks?

01:24:29Months?

01:24:30Years?

01:24:32This thought makes you feel cold in your back.

01:24:36At least you are in an ideal place.

01:24:39Far in the land and on all sides.

01:24:42So that a possible tidal wave should not be able to flood your region.

01:24:47You can't imagine what it looks like up there.

01:24:51You need a distraction to get distracted from the worst of the scenarios.

01:24:56You walk around your house like a real estate agent

01:24:59who would make potential buyers visit it.

01:25:02At the entrance is the living room.

01:25:04A sofa and a low table with some old magazines and board games.

01:25:10In front of you, a small flat screen TV and a DVD player.

01:25:14Unfortunately, no internet, but all these movies should keep you company for a while.

01:25:19On a nearby table, there is a radio and telecommunications system

01:25:23that makes up your ears and your voice to the outside.

01:25:27There is also a library with all kinds of books.

01:25:30Classics, contemporaries, of all genres, as long as it occupies your mind.

01:25:36And if none of this helps you pass the time,

01:25:39there are still video game consoles connected to the TV.

01:25:43Oh yes, and the gym.

01:25:45Rather rudimentary, just a treadmill and dumbbells.

01:25:49You try to do a lot of cardio and weight training to keep in shape and in good health.

01:25:54In any case, for someone who lives underground like a mole.

01:25:58Of course, there is the kitchen.

01:26:00There is a good-sized mini fridge and an stainless steel sink

01:26:04and a lot of cupboards to store all your supplies.

01:26:07You have connected this place with pipes that bring drinking water.

01:26:11In case this stops working, you have also stored water.

01:26:16The bathroom has functional toilets, a sink and a shower connected to the hot water pump.

01:26:22There is even a laundry and a dry cleaner nearby.

01:26:25There is also a small workshop.

01:26:27If something breaks, you can fix it here.

01:26:30You can also build things from recycling materials.

01:26:34A chair or a table if necessary.

01:26:36Or a small figurine to put on the shelf to keep you company.

01:26:40Going down a few steps, we find another vital piece of the bunker, the greenhouse.

01:26:45For obvious reasons, everything is fed with artificial light.

01:26:50You would be much better off if you didn't have your fruits and vegetables.

01:26:54All this is also autonomous.

01:26:56All rotten crops and other weeds are used to make compost for the soil to keep it well fed.

01:27:03However, you can forget about meat for proteins.

01:27:07Quinoa, beans, lentils, chickpeas and mushrooms do the work.

01:27:12And just in case you don't have all the minerals your body needs,

01:27:16you have managed to make food supplies.

01:27:19Vitamin D is an important element for life underground, without the sun.

01:27:24Not far from your small underground farm is your bedroom.

01:27:28It has a large bed, a nightstand on the right, a small closet on the left.

01:27:33You don't have a lot of variety in your clothes,

01:27:36but who will notice that you wear the same outfit twice?

01:27:39The Aquarians?

01:27:42You have to go down a ladder to find the generator room.

01:27:46It is not for nothing that it is deeper and sealed with unsound materials.

01:27:51The generator turns on from time to time and it is quite noisy.

01:27:55It is also connected to the ventilation system so that the exhaust is outside.

01:28:01Then there is the lung room.

01:28:04All these weird-looking boxes are pumps that bring oxygen from the outside world.

01:28:09They have an advanced filtration system to clean the air before propelling it into your shelter.

01:28:16At the bottom, there is also the storage room.

01:28:19All spare parts are there.

01:28:21An additional sofa, a mattress, sinkers.

01:28:24Even two freezers for frozen products, just in case.

01:28:30How does a typical day in the bunker go?

01:28:33First, you prepare breakfast and have a cup of coffee.

01:28:37Then you go to the radio to find out if there is news from the outside world.

01:28:43So far, there has not been any.

01:28:45As soon as you have finished, you go to the greenhouse to take care of your garden.

01:28:49You really like to be there because you feel like you are outside and enjoy nature.

01:28:54At least a little bit.

01:28:56You choose everything that is ripe and you bring it to the kitchen to wash it.

01:29:01And it's already lunchtime.

01:29:03You prepare a good cucumber salad, tomatoes and lettuce.

01:29:07A few beetroots to go with, pasta and you eat everything.

01:29:12After lunch, you watch a DVD that you have not seen for a long time.

01:29:16After the movie, you go around the shelter to quickly check the oxygen and water levels.

01:29:22It so happens that today is also the day you plan to check the generator.

01:29:26You go down to the basement to take a look at the level of fuel and oxygen filters.

01:29:31Everything is fine so far.

01:29:33However, the idea of an even longer stay worries you.

01:29:36What if you run out of fuel?

01:29:40You spend a few hours in the workshop tinkering.

01:29:44At the moment, there is no repair project and you do not feel particularly creative.

01:29:49So you go to the gym.

01:29:51Today is leg day.

01:29:53What you fear.

01:29:55There are things that do not change.

01:29:57Before you realize it, it's dinner time.

01:30:00You warm up the noodles and relax in the living room

01:30:02listening to some of your favorite songs on the music player.

01:30:06This shelter cost you a little over 100,000 euros.

01:30:09For the excavation of the site, the construction and installation of all the systems necessary for your survival.

01:30:15And that does not include additional food and personal activities planned for the bunker.

01:30:21Yes, you are lucky.

01:30:23All these luxuries make life almost ... pleasant.

01:30:27No news from the outside world after a whole month.

01:30:31You have always been a bit introverted, but this place is starting to weigh you down a bit.

01:30:35You feel alone.

01:30:38The sound of the radio makes you get out of your thoughts.

01:30:41Parasites?

01:30:42No, a muffled voice.

01:30:44Someone is trying to contact you.

01:30:47You rush to the radio.

01:30:49You almost stumble because of the shock.

01:30:52Finally, you are overwhelmed by emotion.

01:30:54You are used to your life underground.

01:30:56But it is finally time to open the door and risk yourself in the vast world.

01:31:02Ah, the beauty of nature all around you.

01:31:06The fresh air and days and days of rest and meditation far from civilization.

01:31:12But you walked for a while to get here.

01:31:15And now it's time to set up your camp.

01:31:18The surrounding woods are dense and you can not find an appropriate place to set up your tent.

01:31:23Then you see a beautiful plot of greenery completely devoid of trees and sprinkled with some small bushes.

01:31:30You are satisfied with your find and you start to set up your tent.

01:31:34The ground is exceptionally soft and smooth, but it does not bother you too much.

01:31:39Good thing the stakes go into the ground like a knife in butter.

01:31:43When you're done, it's already night.

01:31:45Then you enter the tent and you slip into your well-stuffed sleeping bag.

01:31:50You wake up with the feeling that something is wrong.

01:31:53You feel ... wet?

01:31:55You start to wriggle inside your sleeping bag.

01:31:58And yes, it is almost completely soaked underneath.

01:32:02You rush out of the tent as quickly as possible.

01:32:06And you see that it begins to sink into the ground.

01:32:08It turns out that you have set up your camp on a swamp.

01:32:12And you were lucky.

01:32:14Swamps are not always obvious.

01:32:16Sometimes you will not even notice them before diving into the mud and finding yourself with troubles to the knees.

01:32:23Getting out of there can also be complicated.

01:32:26The moss and roots create a kind of soft mattress that pulls you slowly down.

01:32:31And when you try to raise your feet, you may end up without your boots.

01:32:35It is quite easy to recognize a forest swamp when you know what to look for.

01:32:40If you are in a dense forest and you see a luxurious and sunny clearing

01:32:44where only moss grows and some small bushes,

01:32:47there is a good chance that it is a swamp.

01:32:51You can also check this by walking lightly on this kind of terrain.

01:32:55If it seems elastic to you, it is better not to approach it.

01:32:59Strangely, another thing for which swamps can be dangerous is when there is a forest fire.

01:33:04If you stay too close to a swamp and you light a campfire,

01:33:08it can create a fire start, especially if there is a lot of wind.

01:33:12Swamps and swamps are filled with mud buried under layers of water and moss.

01:33:18When it starts to burn, it is almost impossible to extinguish it.

01:33:22Before lighting a campfire, always keep a safe distance from a swamp.

01:33:27Another common mistake when setting up a camp in nature is not to keep your eyes open.

01:33:33Let's say you found a solid ground to set up your tent,

01:33:36that you got rid of all the debris and unpleasant stones,

01:33:40and that you made sure there were no ants nearby.

01:33:43You don't want anything to slip into your sleeping bag during the night, do you?

01:33:48The place you chose is perfect,

01:33:50and the tree next to your tent protects you from the wind and rain.

01:33:55You set up for the night, you turn off your camping lamp,

01:33:58and suddenly your tent deforms as if a wild beast had attacked you.

01:34:03Disconcerted, you run out and see that a huge branch has fallen on your tent.

01:34:09The worst thing is that you would have seen it coming if only you had opened your eyes before setting up.

01:34:14Half-broken and rotten branches are easy to spot,

01:34:18and it's never a good idea to put your tent directly underneath.

01:34:22This kind of thing can break at any time,

01:34:24and you'll be lucky if it doesn't tear your tent apart and seriously injure you.

01:34:28You know, crack!

01:34:30Dozens of tourists make this mistake every year, and the pay is often very expensive.

01:34:35Looking up will also help you make sure there are no geckos or spider webs above you.

01:34:41This could be even worse than a branch, because geckos don't like to be disturbed,

01:34:46and spiders can turn out to be venomous.

01:34:49Now, if you see a beautiful river and decide to camp on its banks,

01:34:54also pay attention to the exact place where you set up.

01:34:57If you stay too close to the water, especially in spring or autumn,

01:35:01there's a good chance you'll end up in the water in the middle of the night.

01:35:05Always check the weather forecast for the day and night to come.

01:35:10If it's going to rain, it's better to stay away from all kinds of water,

01:35:14especially rivers.

01:35:16The rain could raise the water level and flood its banks,

01:35:20bringing your little camp and your holidays.

01:35:23But even if you're far from the water, the rain could spoil your holidays anyway.

01:35:28Let's say you're back in the heart of the forest,

01:35:31and the top of the trees is protecting you from the bad weather.

01:35:34The rain always reaches the bottom of the forest,

01:35:37but at least you don't suffer as much as if you stayed in the open sky.

01:35:41The next night, when you set up your camp in another place,

01:35:44you feel that the ground is soft and elastic.

01:35:47However, it's not a swamp.

01:35:49The last night's rain has only made the ground spongy.

01:35:52If you end up in a place like this,

01:35:54it's better to settle in a place where the ground is harder.

01:35:58The problem is that the smooth terrain and furniture

01:36:01can start to disintegrate under your feet at any time.

01:36:04This movement is not as dangerous as when you're in a swamp,

01:36:08but the stakes of your tent can come off,

01:36:10and you'll end up being buried under all the fabrics of your tent.

01:36:14And if you decide to set up your camp in a beautiful valley,

01:36:17and the rain starts to fall while you're here,

01:36:20well, get ready for a pleasant floating trip.

01:36:23All the water will naturally descend and arrive in your shelter,

01:36:27to finally find itself under your tent.

01:36:29No wonder if you find your feet in the water when you wake up.

01:36:33Oh, what a beautiful place to rest after a long walk.

01:36:37It is located at the top of a hill,

01:36:39so there is no water nearby, the sun shines,

01:36:42and there is not a single tree to block it.

01:36:44Taking a sunbath here will be fabulous.

01:36:47That's what you can think of during the first hours.

01:36:50But when you stay here long enough,

01:36:52you will understand the error of your decision.

01:36:54The direct sunlight on your tent can heat it up in a few hours

01:36:58because of the materials it is made of.

01:37:01You will feel it on your skin as soon as you slip into it.

01:37:04And let's say you don't want to stay here too long,

01:37:07and that it would be better to wait for the night for the tent to cool down.

01:37:11Same thing with the wind.

01:37:12In an open place, gusts can reach incredible speeds,

01:37:16and if you didn't pay attention by sinking your stakes,

01:37:19you could say goodbye to your tent earlier than expected.

01:37:22It is preferable to find a place near a tree

01:37:25that will protect you from both the sun and the wind.

01:37:28However, don't camp near an isolated tree

01:37:31when the weather forecasts are not in your favor.

01:37:35The weather or the rain are acceptable,

01:37:37but if a major storm is coming,

01:37:39a completely isolated tree will act as a shield.

01:37:43It is not difficult to imagine what could happen

01:37:46if lightning struck a tree under which you camp.

01:37:49You could get a discharge.

01:37:51If you camp in winter, the weather can be even more treacherous.

01:37:55Do you remember what I said about the direct sunlight?

01:37:59Forget it.

01:38:00In winter, it is preferable that the sun shines on your tent.

01:38:03The cold can hurt you,

01:38:05even if your tent is super cool and costs a lot,

01:38:09and the winds are generally much more violent during the cold season.

01:38:12The direct sunlight will help you endure a large part of the cold.

01:38:16One of the most common mistakes that hikers make

01:38:19is lighting a campfire too close to the tent.

01:38:22Once again, the material of the tent conducts heat very well,

01:38:26and it is a good thing when you want to warm up.

01:38:28But it also ignites very easily.

01:38:30Sometimes a spark is enough to reduce your shelter in ashes.

01:38:34Make sure there is enough space between your tent and the campfire

01:38:38and never leave your fire unguarded.

01:38:41When you fall asleep,

01:38:42the rule wants you to put out the fire

01:38:44so as not to wake up with a blazing campfire around you.

01:38:48Insects can spoil any walk, even if it is great.

01:38:52Mosquitoes, ants, ticks and other harmful insects

01:38:56can make their way to your tent, wherever you are.

01:39:00So make sure you are protected.

01:39:02Use repellents for the skin when you go out

01:39:05and place an anti-mosquito spiral next to the entrance of your tent.

01:39:08However, do not place it inside or too close to it.

01:39:12The smell is irritating and can also cause a fire.

01:39:16To avoid most mosquitoes, and especially ticks,

01:39:19try to stay away from lakes, ponds and dense forests

01:39:23where there may be swamps.

01:39:25Mosquitoes reproduce in calm waters

01:39:28so that the areas around these basins are full of winged parasites.

01:39:32But they have trouble flying when there is wind.

01:39:35Choosing an open space is your best chance to get rid of them.

01:39:39Do not let them bother you.

01:39:43Welcome to Science and you!

01:39:45While you are walking in nature,

01:39:47a snake comes out of the bushes and bites your ankle.

01:39:49What a misfortune!

01:39:50Stay calm.

01:39:51You must maintain your heart rate and blood pressure

01:39:54as low as possible to slow down the spread of the venom.

01:39:57Take off your shoes and socks.

01:39:59Now you have to determine whether the bite comes from a venomous snake.

01:40:03If you see two deep wounds on your leg,

01:40:05they correspond to the bite of a venomous snake.

01:40:07In the case of a non-venomous snake,

01:40:09you will see small marks of pointy teeth forming a U.

01:40:12There are about 600 species of venomous snakes

01:40:15and you must pay attention to vipers and cobras.

01:40:18Each of these snakes has a different type of venom

01:40:21and therefore requires different care.

01:40:23If a viper bites you, do not rely on the wound.

01:40:26Imprisoning the venom in the same area

01:40:28could aggravate the damage caused to the tissue.

01:40:31You must quickly go to the nearest hospital to be treated.

01:40:34If a cobra bites someone,

01:40:36a bandage must be applied to the bite

01:40:38to prevent the venom from spreading in the bloodstream.

01:40:41Keep an eye on the victim to make sure she is breathing well

01:40:44because cobra venom can paralyze the diaphragm.

01:40:47Do not try to suck the venom.

01:40:49It spreads so quickly in the blood that it will be useless.

01:40:52Observe the snake and, if possible,

01:40:54photograph it to show it to medical personnel.

01:40:57Try to have a clear picture.

01:40:59Now let's move on to allergies.

01:41:01Most people react to allergenic compounds

01:41:03by nasal discharge or sneezing.

01:41:05But others react in a much more complex way.

01:41:08A cutaneous eruption can be the sign of an allergic reaction.

01:41:11This kind of irritation can appear

01:41:13a week after exposure to allergenic compounds.

01:41:16Some time ago, a person who had a dental device installed

01:41:19developed cutaneous eruptions under his watch and on his belly.

01:41:23It turned out that she was allergic to nickel

01:41:25contained in the rings of the device.

01:41:27If rings appear on your skin

01:41:29after being exposed to the sun for 1 or 2 hours,

01:41:31it is not a sunburn, but an allergic reaction.

01:41:35You can also have redness, pimples and blemishes.

01:41:38If this happens, go to the emergency room quickly.

01:41:41They will examine you and explain what to do.

01:41:44Some drugs can be used as a cause,

01:41:46but also fruits such as citrus fruits or some tubers.

01:41:49If you are allergic to pollen, beware of fruits and vegetables.

01:41:52Some contain the same proteins as those contained in pollen

01:41:55and your immune system will react as such

01:41:58by causing mouth and face inflammation.

01:42:03If you have a deep wound on your hand,

01:42:05the first thing to do is to call an ambulance.

01:42:07You are stuck in a car in the middle of winter

01:42:09and the cold makes you shiver.

01:42:11It's a good sign.

01:42:12When the temperature drops below a comfortable level,

01:42:14the body trembles to increase its heat production by nearly 500%.

01:42:18But the shivers won't warm you up for long.

01:42:21After a while, your muscles will lack fuel

01:42:23and they will stop contracting.

01:42:25If a cold person keeps shivering and falls asleep,

01:42:28act quickly.

01:42:29Take her to the shelter,

01:42:30remove her wet clothes,

01:42:31rub her hands and feet,

01:42:33wrap her in blankets

01:42:34and apply hot compresses and dry on her chest,

01:42:36neck and belly.

01:42:38Do not apply hot compresses on her arms or legs.

01:42:41The sudden heat will force the cold blood to return to the heart,

01:42:44brain and lungs

01:42:45and will lower the temperature in the center of the body.

01:42:48While you are driving on a deserted road,

01:42:50you hear a weather emergency flash on the radio.

01:42:52A tornado alert means that one of them is likely to form.

01:42:56But a tornado warning means that a tornado has appeared on the radar

01:43:01or that it has been spotted by a person.

01:43:03You must also beware of hail.

01:43:05It appears when the rising currents of a storm

01:43:08push raindrops into thick clouds where they freeze.

01:43:11But when a tornado approaches,

01:43:12it can hail without rain.

01:43:14Everything suddenly becomes calm

01:43:16and there is no wind.

01:43:18You will then see the clouds move in rotation towards the sky

01:43:21and you will hear a sound like a waterfall

01:43:23which will turn into a roar when the tornado approaches.

01:43:27This sound is similar to that of a train or an airplane jet.

01:43:30Debris will begin to fall

01:43:32and a cloud in the shape of a funnel will begin to swirl,

01:43:35attracting branches and leaves upwards.

01:43:37If the tornado does not move to the left or to the right,

01:43:40it may be heading towards you

01:43:42and you will only realize it when it is too close.

01:43:44Get shelter quickly.

01:43:46While you are watching TV at home,

01:43:49you hear a strange clacking sound.

01:43:51It sounds like an air flow,

01:43:52but after checking all the doors,

01:43:54you don't say that there is nothing.

01:43:56The next day, you feel a pressure in your chest

01:43:58which increases as the week goes on.

01:44:00These thoracic pains then accompany

01:44:02a terrible feeling of exhaustion.

01:44:04You then tell yourself that you have a health problem,

01:44:06but the real problem comes from your house.

01:44:08You may be intoxicated with carbon monoxide.

01:44:11When this gas fills your house,

01:44:13it accumulates in your blood

01:44:14and gradually replaces the oxygen in your body.

01:44:17This poisoning can cause headaches,

01:44:19nausea and a state of confusion.

01:44:21In this case, run outside to get some air

01:44:23and call the emergency services.

01:44:25Also get a carbon monoxide detector

01:44:27and install it in the hallway or in the room where you sleep.

01:44:30Check the batteries twice a year

01:44:31and if the alarm goes off,

01:44:32get out of your house immediately.

01:44:34While you are ice skating on a frozen lake,

01:44:36you hear a crack

01:44:37and you suddenly find yourself in icy water.

01:44:40First, your body will be in a state of shock

01:44:42because of the sudden temperature change.

01:44:44Don't panic, it will pass after 1 to 3 minutes.

01:44:47Then find a piece of solid ice to which you hang.

01:44:50Don't try to climb it,

01:44:51just put your arms on the ice

01:44:53and push with your legs

01:44:54as if you wanted to swim forward.

01:44:56This will help you to slowly crawl out of the water.

01:44:58Once you are on the ice,

01:44:59don't get up

01:45:00because your weight will concentrate

01:45:01on a small surface of ice

01:45:03and it will crack again.

01:45:05Keep crawling or rolling

01:45:06until you reach the ground.

01:45:08Could you break the window of a car in a hurry?

01:45:11These windows are made up of several layers of material,

01:45:13whose purpose is to make them resistant.

01:45:15Here is how to do it.

01:45:17Avoid the windshield and the rear window

01:45:19because they are more difficult to break.

01:45:21Opt for the windows on the driver or passenger side.

01:45:24If you have a hammer,

01:45:25don't aim at the center of the window,

01:45:27but rather the edges,

01:45:28where the window is less resistant.

01:45:30If the windows resist the hammer, screwdriver or other tool,

01:45:33look for a small pointed stone.

01:45:35If it doesn't work,

01:45:37try with a candle.

01:45:39Open the lid, remove the candle,

01:45:41break the porcelain case

01:45:42and hit the ceramic piece anywhere on the window.

01:45:46Imagine that you are on vacation somewhere on the Pacific coast.

01:45:49Suddenly, you feel a strong shake.

01:45:51It may be the forerunner of a tsunami approaching.

01:45:54It could also trigger big waves

01:45:56several thousand kilometers away.

01:45:58But there are other signs

01:45:59that announce the approach of a tsunami.

01:46:01One of them is the sudden change in the water level.

01:46:03If you see the water withdraw quickly

01:46:05and discover the bottom,

01:46:06run to take refuge at least 30 meters high

01:46:08and 1.5 kilometers inland.

01:46:11According to many experts,

01:46:12when the sea water begins to withdraw,

01:46:14there are 5 minutes left to evacuate

01:46:16before the giant wave hits.

01:46:18And don't forget,

01:46:19science and you are always there to help you.

01:46:24You walk on the beach towards the water,

01:46:26but something seems different today.

01:46:29The water is sparkling green

01:46:30and your nose is filled with a strange smell of rotten eggs.

01:46:33Do you have to approach to check what is this phenomenon?

01:46:35No.

01:46:36Stop right now before it's too late.

01:46:38What you see is called a proliferation of harmful algae,

01:46:41also called algal efflorescence,

01:46:44and approaching it is a very bad idea.

01:46:46This amalgam contains algae

01:46:48that can produce very dangerous toxic gases.

01:46:50This is why some tourist sites,

01:46:52which were once popular,

01:46:53have become deserts.

01:46:55You can go to a beach by the sea

01:46:57or on the edge of a lake

01:46:58and see something that looks like

01:46:59green-blue spores floating on

01:47:01or just below the surface of the water.

01:47:03In fact,

01:47:04it looks like a kind of gradient of greenish paint.

01:47:07Some water flowers,

01:47:08called red sea,

01:47:09can also color the water brown or red.

01:47:12Anyway,

01:47:13if you ever see something like this,

01:47:15try to keep your distance,

01:47:16to control your curiosity

01:47:18and not to go to the discovery of this funny phenomenon.

01:47:21When the algae decompose,

01:47:23toxic gas pockets of hydrogen sulfide

01:47:25are trapped under the crust.

01:47:27If you walk without knowing it on such a pocket,

01:47:29you will release the gas

01:47:30and will be able to inhale it accidentally.

01:47:32This may end tragically.

01:47:35On some beaches,

01:47:36the bulldozers fill the algae

01:47:38in truckloads

01:47:39and bring them to special centers.

01:47:41There, the workers dry the algae

01:47:43and get rid of it.

01:47:44But sometimes,

01:47:45these centers must be temporarily closed.

01:47:47The algae,

01:47:48mixed with sand and mud,

01:47:49smell so bad

01:47:50that the inhabitants can't sleep at night

01:47:52because of this stench.

01:47:54There are three types of dangerous algae

01:47:56that can become harmful.

01:47:57Cyanobacteria,

01:47:58dinoflagellates,

01:47:59and diatoms.

01:48:01All are composed of tiny forms of floating life

01:48:04that use sunlight

01:48:05to create their own food.

01:48:07The proliferation of blue-green algae

01:48:09is caused by cyanobacteria.

01:48:11They produce dangerous toxins

01:48:13that destroy the nervous tissues.

01:48:15The situation can become so serious

01:48:17that the water purification stations

01:48:19can't get rid of the toxin.

01:48:21In this case,

01:48:22it is recommended to the inhabitants

01:48:23not to use tap water anymore.

01:48:25Dinoflagellates and a kind of diatom

01:48:28are responsible for the creation of red tides.

01:48:30They mainly occur in the oceans.

01:48:33For a red tide to form,

01:48:34the water must be warm, salty,

01:48:36and rich in nutrients.

01:48:37This kind of defluorescence

01:48:38releases a huge amount of different toxins.

01:48:41In Texas,

01:48:42red tides only occurred once a decade.

01:48:44Today, they occur every three years.

01:48:46In Florida,

01:48:47red tides appear every year.

01:48:49Diatoms are long and thin

01:48:50and can produce harmful toxic substances for humans.

01:48:53Even worse,

01:48:54if some crustaceans,

01:48:55like knives,

01:48:56eat a lot of this plankton,

01:48:57they become as toxic.

01:48:59This is why consuming them

01:49:00can lead to a disaster.

01:49:02This is one of the reasons

01:49:03why we monitor the waters of the sea.

01:49:05If the levels of toxins become too high,

01:49:07the beaches are closed

01:49:08to avoid the harvest of shells.

01:49:10The proliferation of harmful algae

01:49:12can last from a few days to a few months.

01:49:14They remove all the oxygen from the water

01:49:16and lead to the disappearance of marine life.

01:49:18But the situation is even worse

01:49:20when microbes begin to decompose the algae

01:49:22at the end of this proliferation.

01:49:24They then consume even more oxygen

01:49:26and no fish can survive there anymore.

01:49:28This creates huge areas of water

01:49:30almost completely devoid of oxygen

01:49:32and all forms of plant or animal life.

01:49:34The proliferation of harmful algae

01:49:36appears in regions

01:49:37where the water contains too many nutrients,

01:49:39and the most common nutrients

01:49:40come from agriculture and other industries.

01:49:42In addition,

01:49:43the winter mosses have become warmer

01:49:45and now generate more humidity.

01:49:47This allows the algae

01:49:48to gather in huge proliferations.

01:49:50Some of them become so huge

01:49:52that large green whirlpools

01:49:54can be observed from space.

01:49:56But all the proliferations of algae

01:49:58are not harmful.

01:49:59Some of them only add a bad taste to the water,

01:50:01change its color

01:50:02or produce disgusting odors.

01:50:04Unfortunately,

01:50:05you will not be able to distinguish

01:50:07toxic algae from totally harmless algae

01:50:09just by looking at them.

01:50:11Algae are not the only organisms

01:50:13that seem completely harmless.

01:50:15Here are other marine inhabitants

01:50:16that should never be touched.

01:50:18The jellyfish Irukandji,

01:50:19which lives in Australia,

01:50:20seems tiny and totally innocent.

01:50:22But appearances are misleading

01:50:25and this baby,

01:50:26the size of a human nail,

01:50:27is actually deadly.

01:50:28During the season

01:50:29from November to May,

01:50:30tons of beaches are closed

01:50:31because of these little creatures.

01:50:33What makes jellyfish

01:50:34particularly dangerous

01:50:35is their miniature size.

01:50:37You will not see them

01:50:38just by swimming.

01:50:39Oops!

01:50:40The blue-ringed octopus

01:50:41does not just look perfectly harmless,

01:50:43it also has a breathtaking beauty.

01:50:45But do not be fooled

01:50:46by its appearance.

01:50:47You would not want to come face to face

01:50:49with this relatively small creature

01:50:5120 centimeters long.

01:50:53It carries enough venom

01:50:55to kill 26 adults in a few minutes.

01:50:57And once the animal feels threatened,

01:50:59well,

01:51:00you can probably guess the result.

01:51:02At the same time,

01:51:03if you do not disturb it,

01:51:05this octopus is absolutely docile.

01:51:07The famous jellyfish Boate,

01:51:09thus named because of its cubic shape,

01:51:11lives in the Indian and Pacific Oceans.

01:51:13Stay away from this creature

01:51:15that has a square bell

01:51:16and long tentacles that hang.

01:51:18And even if you see a single tentacle,

01:51:20without jellyfish or anything else,

01:51:22do not approach it and do not touch it.

01:51:24The jellyfish Boate can grow up to 3 meters,

01:51:26and each of its tentacles

01:51:28has about 500,000 microscopic fins

01:51:30that are used to inject venom.

01:51:32Unlike other jellyfish,

01:51:33jellyfish Boate are hunters.

01:51:35They can cling to you

01:51:36by wrapping their thin tentacles

01:51:38around one of your limbs or your body.

01:51:40Given the danger their venom represents,

01:51:42I swear it will not be a pleasant experience.

01:51:44The starfish crown of thorns

01:51:46has logically received its name

01:51:48from the venomous thorns

01:51:49that cover its entire body.

01:51:50It is the second largest starfish in the world

01:51:52in terms of size.

01:51:53It can measure up to 50 centimeters in diameter.

01:51:55It feeds on corals,

01:51:57and it eats a lot.

01:51:58A single starfish can eat

01:52:00more than 30 square meters of corals in a year.

01:52:02These creatures also tend

01:52:04to have a lot of babies.

01:52:06They produce more than 500 million eggs at a time.

01:52:08Really, it does its job well.

01:52:10The blue-tailed jellyfish Ray

01:52:12is quite small and lives mainly

01:52:14in the Indian and Pacific Oceans,

01:52:16near the coral reefs.

01:52:18This creature does not measure

01:52:20more than 35 centimeters in diameter

01:52:22and has a rather striking color pattern.

01:52:24It is yellow, with electric blue spots

01:52:26on the body and several blue stripes on the tail.

01:52:28But even if this animal is quite pretty,

01:52:30you should never forget

01:52:32that it is also very dangerous.

01:52:34It can injure you with the venomous thorns on its tail.

01:52:36You can meet flying rascals

01:52:38in the South Pacific Ocean and the Caribbean Sea.

01:52:40Despite what most people think,

01:52:42there is no problem eating this fish.

01:52:44It is when they are alive

01:52:46that the creature presents a real danger.

01:52:48You can accidentally sting yourself

01:52:50with their pointy jaws, which contain venom.

01:52:52If you are a passionate shell collector,

01:52:54you should know about conical snails.

01:52:56With a length of about 10 centimeters,

01:52:58the snail looks cute and innocent.

01:53:00But this vision is misleading,

01:53:02especially if you are dealing with a tropical species.

01:53:04Imagine that you find a pretty shell

01:53:06and that you pick it up.

01:53:08You are not afraid, your diving gloves

01:53:10seem to offer you perfect protection.

01:53:12But conical snails have tiny protuberances

01:53:14that they can come out of their mouths.

01:53:16And these are full of deadly neurotoxins.

01:53:18These harpoons can easily cross

01:53:20the fabric of your diving suit.

01:53:22But the worst part is that its venom

01:53:24contains analgesics.

01:53:26You won't even realize you've been stung.

01:53:28The conical snail has entered

01:53:30the Guinness Book of Records

01:53:32as the most dangerous snail on the planet.

01:53:34These creatures live in the Indian

01:53:36and South Pacific Oceans.

01:53:38And even if a conical snail looks like

01:53:40something you would like to see

01:53:42in a movie,

01:53:44it is actually an extremely unpleasant

01:53:46or super short vacation.

01:53:48The stone fish is the most venomous

01:53:50fish in the world,

01:53:52and it knows how to camouflage itself.

01:53:54It can melt so well in the environment

01:53:56that you won't see it,

01:53:58even if you are very careful.

01:54:00It is therefore very easy to walk on it.

01:54:02Once the creature feels threatened,

01:54:04as when you accidentally try to crush it,

01:54:06it deploys the venomous thorns

01:54:08that grow along its back.

01:54:10The sea needles of Indonesia

01:54:12are not venomous,

01:54:14do not have sharp teeth,

01:54:16and will probably stay as far away

01:54:18from you as possible.

01:54:20The danger resides in the shape

01:54:22of the fish's body.

01:54:24After all, it was not called a needle for nothing.

01:54:26Sea needles swim near the surface.

01:54:28In case of danger,

01:54:30they throw themselves out of the water

01:54:32and their speed can reach 60 km per hour.

01:54:34Their long jaws simply transform

01:54:36these fish into flying spears.

01:54:38When they feel in danger,

01:54:40they move their tail and reveal

01:54:42spikes in the shape of scalpel.

01:54:44If you do not hurry to leave,

01:54:46you can have several nasty cuts.

01:54:48Do not forget that some species

01:54:50are also venomous.

01:54:52And above all,

01:54:54have a great day at the beach!

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