Anatomical and reproductive data considered by Gregory do not unequivocally preclude a marsupial-monotreme special relationship, and there is other recent evidence for placing turtles within the Diapsida. The Marsupionta hypothesis of Gregory is reviewed, as are opinions about the placement of chelonians. Set of images representing a stylized platypus vector illustration. Often considered the worlds oddest mammal, Australias beaver-like, duck-billed platypus exhibits an array of bizarre characteristics: it lays eggs instead of giving birth to live babies, sweats. It’s the rest of us mammals where things got complicated. If you cant find what youre looking for here, try the search facility, An Index to Creationist Claims, or the site map/outline. Answer (1 of 2): Q: What circumstances led to the evolution of the duck-billed platypus Well, the evolution of the platypus is actually quite simple.
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However, the sister relationships found here of the monotremes to marsupials, and of turtles to the alligator, are surprising results which are nonetheless consistent with the results of some other studies. Download 54 Diving Evolution Stock Illustrations, Vectors & Clipart for FREE or. This index contains a list of keywords that are common in discussions of creation and evolution. Trees generated from these data largely agree with conventional views, for example in not associating birds and mammals.
We present DNA-hybridization data on 21 amniotes and two anurans showing that discrimination is obtained among most of these at the class and lower levels.
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