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02:31
Reptile's Story
Great Mom Platypuses Laying Eggs And Cute Platypuses Moments
Platypuses Breed: The platypus, sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. The animal is the sole living representative of its family and genus, though a number of related species appear in the fossil record. The first scientists to examine a preserved platypus bodyb judged it a fake, made of several animals sewn together. View More: #ReptileStory All videos on channel can use the content-based copyright law contains reasonable use fair use (https: //www.youtube.com/yt/copyright / ...) All issues policy violations, community guidelines, copyright law, please contact us directly via email: cararuss1102us@gmail.com
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05:11
Planet Doc Full Documentaries
Duckbill Platypus | Australia
The duckbill platypus is one of the three species of monotremes mammals that lay eggs, a shy animal which lives in some rivers in the east of Australia. The other two are echidnas the long-snouted variety in New Guinea, and this one, the short-snouted variety, which can be found throughout Australia. The duckbill platypus looks like an impossible compendium of different zoological types. From the time Dawson sent his controversial example to the British Natural History Museum, there were constant scientific discussions, lasting for over a hundred years, until, finally, two zoologist demonstrated irrefutably that they were indeed mammals, and reproduced by laying eggs. Although they are small in size, the duckbill platypuses would seem to have an insatiable appetite. This one has found a river crab. Crustaceans, molluscs, annelids, and even amphibians form part of their extremely varied diet. And their peculiar morphology means they are able to hunt their prey even in muddy waters. Using its webbed feet and broad muscular tail to propel itself along, the archaic platypus searches the river bottom. The sensors on its beak detect the slightest movement or change in temperature. Any animal crawling or swimming along the river bed is rapidly located and, if it of any interest, devoured. In the rivers of Australia, the platypus is so well-adapted it has no competitors. Or rather, almost none. As in so many other environmental niches, the placentary mammals have also come up with a prototype. On this occasion, the result of the evolutionary process was the water rat, or beaver rat, which was able to thrive in the aquatic world thanks to its water-proof fur and partially-webbed feet. Strangely, no marsupial tried developed to colonise the rivers of Australia, and so the freshwater resources of this continent are shared between the modern water rat and the archaic duckbill platypus. The aborigines, who arrived in Australia fifty thousand years ago, already knew the duckbill platypus, which they named the “water mole”, a very appropriate name, given that the platypus lives out its amphibious life between the water, where it finds food, and the river banks, where it digs its tunnels. Their dependence on the rivers however limited the spread of this survivor from Gondwana because as Australia became increasingly dry, and the rivers of the interior slowly disappeared, with the rising of the temperature deserts were formed. ▶FACEBOOK | http://bit.ly/FBPDoc ▶TWITTER | http://bit.ly/TwPDoc ▶TUMBLR | http://bit.ly/TbPlDoc
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