Les animaux préhistoriques étaient tellement sauvages, qu'ils pourraient parfaitement s'intégrer dans un film de science-fiction ! Le Therizinosaurus avait des griffes massives qui ressemblaient à celles d'un envahisseur extraterrestre, parfaites pour effrayer les prédateurs. Ensuite, il y avait l'Anomalocaris, une créature semblable à une crevette avec de grands yeux globuleux et des appendices épineux qui la rendaient plus extraterrestre qu'océanique. Le Quetzalcoatlus était un reptile volant de la taille d'un petit avion, planant dans le ciel comme s'il venait directement d'un autre monde. N'oublions pas l'Opabinia, avec ses cinq yeux et son étrange nez attrapeur - c'est comme si la nature avait fait preuve d'une créativité débordante. Ces créatures anciennes nous rappellent que l'histoire de la Terre est peuplée d'êtres aussi étranges et fascinants que ceux venus de l'espace ! Animation créée par Sympa.
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Musique par Epidemic Sound https://www.epidemicsound.com
Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna
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Nos réseaux sociaux :
Facebook: https://www.facebook.com/sympasympacom/
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Stock de fichiers (photos, vidéos et autres):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
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Si tu en veux encore plus, fais un tour ici:
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FunTranscript
00:00Imagine a creature with a body resembling that of a seal, with eyes mounted on rods resembling a fantasy deer, fins adorning its tail, and a long, slender nose that ends with a mouth filled with teeth, or maybe a claw.
00:15And yes, the monster of Thule is on the hunt. It is undeniably one of the strangest creatures you would like to meet at sea.
00:23Fortunately, this species disappeared 300 million years ago. Discovered in Illinois in the 1950s, this atypical marine creature has long divided the scientific community in terms of its true nature.
00:35Some researchers thought it was a vertebrate, i.e. a creature with a vertebral column, just like humans.
00:42However, a team of Japanese researchers has recently studied many fossils of the monster of Thule, using advanced laser technology to analyze them in detail and in three dimensions.
00:53Although many mysteries still surround the monster of Thule, scientists have ended up determining that it did not have a vertebral column.
01:02The next step was to identify what type of vertebrate it could be. Did it look like a Phyoxus weapon, which has similarities with vertebrates?
01:13Or was it closer to snails and worms?
01:16They also highlighted a segmentation at the level of the head, which extended from the body.
01:22A feature absent in creatures with bone structures.
01:27However, in recent years, some scientists have advanced the hypothesis that the monster of Thule could be related to jawless fish, such as lampreys.
01:36These creatures, which belong to the oldest group of vertebrates, the superclass of Cyclostomes, are no longer pleasant to look at.
01:44Unlike the monster of Thule, lampreys are not extinct.
01:48They continue to haunt the oceans, sometimes frightening other creatures, sometimes humans.
01:53Especially in the waters of the northern and western regions of the Atlantic where they live.
01:57Present for millions of years, they are even much earlier than dinosaurs.
02:02A long time ago, long before the existence of humans, the Eurypterids lived, singular creatures belonging to the group of arthropods, which includes spiders, insects and crabs.
02:13However, the Eurypterids were born very different from anything you could imagine.
02:18Their body, composed of many segments, evoked that of limuli.
02:23Instead of legs, they had special appendages located at the front, used as rams.
02:29Some even call them sea scorpions, or caparisoned giants.
02:34Although the majority of Eurypterids were of modest size.
02:38With the exception of the Jaychelopterus renaniae, a colossal specimen that can reach an impressive length of 2.5 meters.
02:46The next time you see a crab wandering on a beach, or a spider weaving its web, remember your chance of meeting only modern and reduced versions of its ancestors.
02:57Disappeared hundreds of millions of years ago.
03:00In addition, some Eurypterids were able predators, fast and aggressive, hunting their prey with agility, despite the currents.
03:09Others played, rather the role of scavengers, content to pick up the remains they found at the bottom of the water, a bit like a cleaning team of the primitive oceans.
03:18These singular creatures particularly appreciated the environments of somatic water, a water whose salinity is between that of fresh water and that of seawater.
03:28Imagine that you were floating quietly in the water, and suddenly, you came face to face with this creature.
03:34No, this is not a strange little spaceship.
03:38You will not meet it either in space, even if its appearance, similar to these extraterrestrial creatures that we see in science fiction movies, could lend itself to it.
03:48In reality, you would see it floating in the sea.
03:51It is a tiny animal, but endowed with huge eyes, called holocaris.
03:56Its ocular globes represent to themselves about a quarter of the total length of its body.
04:01This almost extraterrestrial aspect makes it look like a creature living in the underwater oceans of worlds like Europe, a moon of Jupiter, or Titan, the largest moon of Saturn.
04:12We could even imagine beings similar to the holocaris reserving us a warm welcome when we set foot on Mars one day.
04:20The holocaris had a remarkable sight.
04:22Always on alert, it watched the slightest movement around it.
04:26As soon as it spotted an activity, it unhesitatingly projected its appendages, riddled with spikes, forward.
04:33Although it looks like locksmith tools at first glance, its appendages were actually used to capture small arthropods.
04:40What is amazing is that despite its excellent vision, the holocaris spent most of its time hunting prey in clear and shallow waters.
04:49However, the fossils found by scientists are located in rocky layers usually associated with dark habitats, similar to those where species such as abyssal crinoids or vampire squids live today.
05:03This seems paradoxical, but a hypothesis suggests that these creatures of the great depths once lived in shallow waters, before the geographical changes of the Earth led them to the depths.
05:15The exact origin of the holocaris remains a mystery.
05:19It could belong to the group of arthropods, a fascinating reservoir of strange creatures.
05:25Some think it could have a kinship link with shrimp, while others compare it to blind and worm-like crustaceans inhabiting the dark underwater caves.
05:36Now look at this gigantic worm buried under the sand of the seabed, patiently waiting for a prey to pass by.
05:43These ancient creatures were formidable hunters, perfectly camouflaged in their sandbags.
05:49Today, 20 million years later, scientists have uncovered traces of their secret hideout.
05:55The worm discovered in the form of the letter L has been found in ancient sediments off the coast of Taiwan.
06:02It was about 2 meters long, but not more than 3 centimeters in diameter.
06:08It was in these shelters that the ancestors of the current Afro-Hungarian greys lived.
06:12These creatures have crossed the ages, and can measure just a few centimeters, up to an impressive length of 3 meters.
06:20A rather strange creature reigned over the North American skies at the end of the dinosaur era.
06:25Known under the name Quetzalcoatlus, it overflew emblematic species such as the Tyrannosaurus and the Triceratops, affirming its status as absolute sovereign of the sky.
06:36This winged giant belonged to a group of flying reptiles called Pterosaurs, which are among the most imposing flying animals ever identified.
06:44Imagine a Quetzalcoatlus as big as a giraffe.
06:48These extraordinary creatures bore long necks, small bodies, elongated legs, and wings that, although massive, seemed short in their size.
06:59The most imposing specimens hold the record for the largest flying creatures in history.
07:05Their elongated and slender skulls were sometimes adorned with small crests located at the back of the head.
07:12For a long time, scientists have wondered about the hunting methods of these impressive Pterosaurs.
07:18Some have assumed that the Quetzalcoatlus, like its relatives, acted like a gigantic vulture, feeding on carcasses found here and there.
07:27This hypothesis came from the fact that these fossils had been discovered far from the coastal areas, unlike those of other large Pterosaurs such as the Pteranodon.
07:36Other specialists thought that these animals excelled in the art of gliding, flying over shallow water to catch fish.
07:44However, it would seem that the Quetzalcoatlus was a formidable predator, with exceptional hunting skills.
07:52The precise way in which it captured its prey remains a mystery.
07:56Here is another fascinating discovery.
07:59A special fossil, Haotia Quadriformis, which represents the oldest trace of muscle tissue ever discovered.
08:07This fossil belongs to a group of animals, the Cnidaires, which include modern creatures such as jellyfish, corals, and sea anemones.
08:17And admit that it has a truly unique appearance, doesn't it?
08:20This fossil presents organized fiber fibers according to a symmetrical pattern in four parts.
08:25An arrangement similar to what is observed in the current Cnidaires.
08:29This structure is unparalleled among fossils dating from the Ediacaran, between 635 and 540 and a million years before our era.
08:38Although it may seem strange, this fossil plays a key role in understanding the evolution of muscle tissue in animals.
08:45Thanks to such muscles, organisms, including us, have been able to develop new food strategies and explore new possibilities.
08:54Fossilized muscles being extremely rare, researchers generally have to rely on observations related to feeding, reproduction, or animal locomotion to better understand them.
09:05This extraordinary fossil suggests that the appearance of animals could date back to an even older era than we thought until now.