The Platypus was first described in 1799 in Shaws naturalists confection along with the koala, Kangaroo, wombat and emu. The most curious was the paddlefish. Since its first discovery in that location has been much debate as to whether it is a mammal and how it should be classified. Â Â Â Â Â Â Â Â The platypus is a primitive mammal that has many a(prenominal) an(prenominal) features that cave in it from former(a) mammals-it lays eggs, in that location is an absence capture of true dentition and an absence of mammary glands, although it has special glands that bring out milk. It has fur like otherwise animals, but it has a prig like the bill of a duck, webbed feet and a track like a beaver. Â Â Â Â Â Â Â Â A dried platypus bark has been sent to England in 1798 and was considered to be fake. Â Â Â Â Â Â Â Â Up until 1884 there was dubiety about how the platypus reproduced. In 1884 Caldwell solved the problem by capturing a female with eggs. Â Â Â Â Â Â Â Â about 1904 the scientific Ameri flock describe that there are many mammals that do not sustain teeth when adults. Â Â Â Â Â Â Â Â Up until 1973 there was uncertainty about the platypus being able to govern its body temperature like other mammals. Recent research shows that it can regulate body temperature but the mechanism is underdeveloped. Â Â Â Â Â Â Â Â There are two living groups: The platypuses and the echidnas.
The scarce Cretaceous mammal cognize for Australia is also a monotreme, Steropodon galmani, a platypus-like animal that might be more appropriately position in a family of its own. Â Â Â Â Â Â Â Â Until 1971, an intellect of the h! istory of Australias platypus was non-existent. unconnected from the fact that it was a monotreme and only known from Australia, all else was mystery. Then ternary major(ip) discoveries were made: two molar teeth of Obdurodon insignis, a 25 million-year-old platypus from the Tirari desert; a crush fragment with three teeth of sterepodan galmani a... If you want to get a full essay, post it on our website: BestEssayCheap.com
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