Category
🐳
AnimalsTranscript
00:00 Everybody knows sharks as the top predator in the ocean.
00:08 Look at this dangerous looking.
00:10 Sharp teeth, scary eyes, injured face.
00:14 But that's wrong.
00:15 The real king of the ocean is the killer whale.
00:22 The killer whale is at the top of the ocean food chain.
00:27 Killer whales do not even have natural predators in the ocean.
00:31 There is no animal in the ocean that can stand up to killer whales.
00:36 Killer whales are social animals.
00:38 They hunt in groups.
00:40 They are so intelligent that you wouldn't even believe their plans to hunt animals.
00:46 This group of orcas is creating waves to wash that seal to the ocean.
00:56 After it falls in the ocean, the rest is easy.
00:59 Catch and eat.
01:05 Orcas eat nearly everything in the ocean.
01:07 Fish, seals, sharks, sometimes other whales.
01:12 On the coast of California, people witnessed two orcas are killing a shark.
01:18 Orcas kill great white sharks and eat just the liver.
01:21 They leave the rest of the body.
01:23 There are several occasions people have found sharks' livers taken off.
01:29 Terrifying.
01:30 The reason is probably orcas see shark livers as vitamin pills.
01:38 Orcas have a crucial part in the ocean food chain.
01:40 When they do not hunt their prey, it will affect the whole ocean consequently.
01:46 If they stop hunting, the number of sharks/seals will increase above normal levels, which brings
01:52 out bad news for the whole ocean ecosystem.
01:56 The name "killer whale" was given to orcas after ancient sailors observed groups of orcas
02:02 hunting and preying on larger whale species.
02:05 They referred to orcas as "assassina valenas" or "whale killers", a term that was eventually
02:12 shortened to "killer whale".
02:14 Orcinus orca, the Latin name for orcas, reflects this observation of orcas feeding on large
02:21 whales.
02:22 We talked about great whites a lot.
02:24 Let's take a look at them too.
02:26 Smell accounts for up to two-thirds of the total weight of a shark's brain.
02:31 Some sharks can detect prey blood from a great distance away.
02:36 One drop of blood to one million drops of water.
02:39 That's equivalent of one teaspoon in a medium-sized swimming pool.
02:44 Their sharp teeth can cut almost anything like a knife.
02:48 These triangular teeth are specifically designed to kill prey.
02:52 Great white sharks like to hunt sea lions, sea turtles, seals, dolphins, small-teethed
03:00 whales, seabirds.
03:02 They use a common strategy to hunt prey underwater.
03:05 They approach prey from underneath and with a high burst of speed, they can even leave
03:11 the water completely.
03:13 Let's check out another animal in the ocean food chain, polar bears.
03:17 Even though they are in the category of land mammals, polar bears are considered as good
03:23 swimmers.
03:24 They spend most of their time underwater.
03:26 They can swim for hundreds of miles from the land without giving a single break.
03:31 Their first choice is usually seals.
03:34 But they eat fish, delugas, narwhals, walrus, and sometimes bobhead whales.
03:41 What happens when they cannot get in the sea?
03:43 They search for bird eggs.
03:46 Seals are the favorite meals of polar bears.
03:49 They can wait for days for a seal to get out of a breathing hole.
03:53 When the seal pops out for air, the polar bear jumps in the hole.
03:58 Another predator in the ocean, leopard seals.
04:01 Even though leopard seals look so cute, they are ferocious predators.
04:06 With their powerful jaw and long sharp teeth, they can easily rip apart seal pups and penguins.
04:13 They are the Antarctic's fearless predators.
04:16 When they catch a penguin, they swing it left and right until its skin is peeled off.
04:23 Unlike their looking, they are quite horrible.
04:27 They have an insatiable appetite.
04:29 They spend most of their time in the ocean foraging for prey.
04:33 They eat almost anything that moves in the ocean, fish, squid, crustaceans, and thousands
04:39 of prairies.
04:41 In the ocean, there is an important predator that should not be forgotten on this list.
04:46 Sea lions.
04:48 Sea lions can swim faster even than sharks and killer whales.
04:52 They can swim at burst speeds up to 25 miles per hour.
04:56 However, they still can't resist the evil plans of sharks and killer whales.
05:02 They are threatened by killer whales and sharks in the ocean and by humans on the land.
05:09 Especially the baby sea lions that cannot swim fast enough will be prey for these predators.
05:16 Their best defense strategy is getting onto the land.
05:19 But sometimes even this strategy cannot save them from killer whales.
05:28 We talked about predators, but what about the owners of the oceans?
05:34 Meet the biggest animal in the world.
05:36 The Antarctic blue whale is the world's largest animal, weighing up to 400,000 pounds.
05:43 This equals to approximately 30 elephants.
05:46 They can reach lengths of up to 98 feet.
05:50 The whale has a heart the size of a small car and consumes approximately 8,000 pounds
05:55 of kernel per day during the main feeding season.
06:00 It is the loudest animal on the whole planet, even louder than a jet engine.
06:06 With calls reaching 188 decibels compared to 140 decibels for a jet.
06:13 Low-frequency whistle of the whales can be heard for hundreds of miles and is most likely
06:19 used to attract other blue whales.
06:22 They travel a lot, spending the summers feeding in the polar regions and then making a long
06:27 journey to the equator as winter approaches.
06:31 They have a cruising speed of 5 miles per hour, but can accelerate to 20 miles per hour
06:37 when necessary.
06:39 The blue whale can be found in every ocean on the planet, which means it can be found
06:44 in every aquatic habitat.
06:46 They have been discovered in Arctic, tropical, subtropical, and temperate seas.
06:53 These whales spend the summers in the cooler waters of the Arctic and Antarctic oceans
06:59 and the winters in tropical waters near the equator.
07:02 The older whales and pregnant whales are the first to set out on their migration.
07:08 In general, migration occurs in groups based on age and sex, with the youngest animals
07:14 migrating last.
07:20 During the migration, they eat almost nothing and rely on their fat reserves to survive.
07:28 When whales reach tropical waters, they give birth and reproduce.
07:33 Every two to three years, these whales have a calf and carry the baby for about a year.
07:39 After a year of gestation, the whale gives birth to a calf, which is about 23 feet long
07:45 and weighs between 5,000 and 6 pounds at birth.
07:50 This was Tough Creatures.
07:52 Do not forget to subscribe.
07:54 See you at the next video.
07:55 [MUSIC PLAYING]
07:59 [WHALE SOUNDS]
08:03 [MUSIC PLAYING]
08:06 [WHALE SOUNDS]
08:10 (electronic whirring)