Nos Dernières Rencontres Avec Des Espèces Éteintes

Sympa

Parlons de quelques fascinants animaux disparus et de leurs dernières observations enregistrées. Le lion de l'Atlas, également connu sous le nom de lion d'Afrique du Nord, arpentait le Maghreb mais a été chassé jusqu'à presque extinction, avec la dernière observation en milieu sauvage en 1956 et environ 80 à 100 encore en captivité. Le dodo, un oiseau incapable de voler originaire de Maurice, a rapidement disparu en raison des espèces invasives et de la destruction de son habitat, avec sa dernière observation confirmée en 1662. La vache de mer de Steller a été découverte en 1741 et chassée jusqu'à l'extinction en seulement 27 ans, ne laissant comme preuves que des os et des fossiles. Le tigre de Tasmanie, ou thylacine, a été vu pour la dernière fois à l'état sauvage en 1930, et le dernier en captivité est mort en 1936 au zoo de Hobart.  Animation créée par Sympa. ---------------------------------------------------------------------------------------- Musique par Epidemic Sound https://www.epidemicsound.com   Pour ne rien perdre de Sympa, abonnez-vous!: https://goo.gl/6E4Xna​ ---------------------------------------------------------------------------------------- Nos réseaux sociaux : Facebook: https://www.facebook.com/sympasympacom/ Instagram: https://www.instagram.com/sympa.officiel/  Stock de fichiers (photos, vidéos et autres): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ----------------------------------------------------------------------------------------  Si tu en veux encore plus, fais un tour ici:  http://sympa-sympa.com

Transcript

00:00Currently, there are about 20 billion animals on Earth.

00:06In ideal conditions, we could have 5 billion more.

00:11However, many species have disappeared and about 44,000 are currently endangered.

00:18The largest recent mass extinction event occurred at the time of the dinosaurs,

00:23eradicating 75% of the species on Earth.

00:29Gray's wallaby, a distant relative of the modern kangaroo,

00:32had a true superpower, night vision.

00:36This is why it was mainly active at night.

00:38Measuring 1 meter high, it fed on grass, leaves, fruit and other plants.

00:43These wallabies lived in grassy expanses, near swamps and other water plants,

00:48but their existence was short-lived.

00:50In the 19th century, their population had considerably decreased, bringing them closer to extinction.

00:56In 1920, only 14 of these wallabies remained in the wild.

01:00A rescue mission was organized to capture the last 14 specimens and protect them.

01:06But unfortunately, the situation worsened and 10 of these wallabies died.

01:11The remaining 4 were transferred to a special facility,

01:15where the last of them would die in 1939.

01:19Today, there is only one photo of Gray's wallaby left.

01:22Although it is reported to have been observed after this date,

01:25no evidence has ever been provided,

01:27and this wallaby was officially declared extinct in the 1970s.

01:31Short-faced bears were a unique species living in North America,

01:36and more particularly in Alaska.

01:38These massive plantigrades weighed about 680 kg.

01:42When they stood on their hind legs, they measured about 3.60 meters high,

01:47which is 30 cm more than the largest bear today, which is the polar bear.

01:52Unlike most modern bears, which are omnivores, except for polar bears,

01:57these bears were exclusively carnivores, which led to their extinction.

02:02At the end of the Ice Age, the disappearance of many herbivores

02:06led to a shortage of food for these predators.

02:09They were then the sprinters of the world of bears,

02:12and the fastest to have ever existed.

02:15They could reach a top speed of 64 km per hour,

02:19which is 8 km more than the grizzlies.

02:23There are currently nearly 400 million pigeons in the world.

02:27Once upon a time, a species of bird called the traveling turtle

02:31abounded in America, especially in the eastern forests.

02:35There were more than a billion of them,

02:37but their number quickly fell to zero in just a few years.

02:41With their small heads, long necks, long tails,

02:44large wings and powerful pectoral muscles,

02:47they could travel a very long distance.

02:50The last traveling turtle, called Martha,

02:54died in captivity in 1914,

02:56marking the disappearance of this species in the American ecosystem.

03:00Elephants are imposing animals,

03:03but they seem tiny compared to Megaloceros,

03:06where Irish elephants have now disappeared.

03:09This prehistoric elephant measured about 2.10 meters high at the neck,

03:14and had impressive woods of a width of 3.60 meters.

03:19Today, elephants only measure 1.30 meters at the shoulder

03:23and have woods of about 1.20 meters long.

03:26Despite its nickname, this elephant was found all over the world,

03:30from Asia to Europe.

03:32It was named so because a perfectly preserved specimen

03:36was discovered near the Irish capital of Dublin.

03:40The last Megaloceros died in Ireland

03:43due to its inability to adapt to the climatic changes of the post-glacial era.

03:49Somewhere in the heart of the Costa Rica forests lived the golden toad,

03:53a fascinating creature.

03:55Discovered in 1966,

03:58these batrachians gathered in a specific place to mate.

04:02The following year, in 1967,

04:05a large population of these golden toads was observed.

04:09But the following year, only 10 to 11 individuals were seen.

04:13In 1968, finally,

04:15we saw more than one lonely male.

04:18The search for the golden toads continued for years,

04:23and in 2004, they were officially declared extinct.

04:27This extinction was not due to humans for once,

04:30but to the impact of the drought of the 80s.

04:33However, the coup de grace came in the form of a new species of chytrid mushroom,

04:39causing the thickening of the skin of the batrachians and leading to premature death.

04:44This mushroom is responsible for the extinction of more than 90 species of frogs and amphibians,

04:50thus posing a serious threat to their survival.

04:55Canada is a glacial country, as everyone knows,

04:58and no one would expect to find tropical birds there, like parakeets.

05:02However, there used to be a species of parakeet that lived in America

05:06and in some parts of Canada,

05:08Caroline's conure.

05:11These magnificent birds had a yellow-orange head and a green body.

05:15They liked to perch in large trees along rivers

05:19and mainly fed on xanthium seeds,

05:22which are toxic to humans.

05:25The bird, on the other hand, had no problem consuming them.

05:28In addition, by ingesting these dangerous seeds in large quantities,

05:32their flesh became toxic

05:34and predators did not like to eat toxic birds.

05:38Although these parakeets were very numerous, with several million individuals,

05:42their population gradually decreased since the Ice Age,

05:46mainly due to temperature changes.

05:49In 1939, there were no more Caroline's conures in the wild.

05:56The current African lion had a much more imposing and feared cousin,

06:00the lion of the Atlas.

06:02Mentioned in many famous stories,

06:04these large felines were described as terrifying ferocious beasts.

06:08They are considered the largest species of lion to have ever existed,

06:12weighing about 270 kilograms

06:14and measuring 2.7 meters from head to tail.

06:18Unfortunately, this lion was declared extinct in the 90s

06:22due to various factors,

06:24but today we only have one photograph of the animal taken from a plane.

06:29Paradise parakeets were native to Australia.

06:32These birds were distinguished by their bright colors

06:35and their unique nesting method,

06:38which consisted of choosing termite mounds to lay their eggs there.

06:42Despite their beauty, they have always been threatened with extinction

06:45for reasons still unknown,

06:47although their many predators, including mice and rats,

06:51certainly contributed to their decline.

06:53The last paradise parakeet was observed in 1972,

06:57and today these birds can only be seen in museums.

07:02The Gulf of Mexico once sheltered the Moana seals of the Caribbean,

07:06who particularly appreciated the hot subtropical climate of the region.

07:10They were found most often near reefs and islands,

07:13looking for food.

07:15Similarly to us, they also flocked to sandy beaches

07:19where they rested in large groups of about a hundred individuals.

07:22The Moana seals have been considered extinct since 1950,

07:26but some specimens are still visible in two museums in the United Kingdom.

07:31As we all know, zebras have black and white stripes,

07:35but in the past, a species of zebra, the quagga, had a peculiarity.

07:40Only half of its body had brown and white stripes,

07:44while the back was simply brown and the belly white.

07:48The quaggas lived in the south of Africa,

07:51in the prairies and wet pastures,

07:53feeding on grass and plants, just like today's zebras.

07:56The last quagga died in 1888,

07:59but all hope is not lost.

08:01Research is indeed underway

08:03to reintroduce this species that has disappeared into nature.

08:09Australia is known for its extravagant fauna,

08:12in which the reobatrachis frogs are particularly fascinating.

08:17Unlike ordinary frogs,

08:19they incubate their young in their stomach

08:22and give birth by vomiting about 25 young frogs entirely formed.

08:28Sometimes, their stomach was so inflated that they had to breathe through their skin.

08:33Two species of this frog were discovered in the 1970s

08:37by a certain Mike Taylor, in the north and south of Australia.

08:40Unfortunately, a decade after their discovery,

08:43the two species disappeared mainly because of the chytrid mushroom we mentioned earlier.

08:48However, they are also the subject of a deforestation program,

08:52and researchers are not making any effort to reintroduce them into their natural habitat.

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