An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

WASHINGTON, July 18 (Reuters) - A shrew-like primitive mammal that inhabited China 165 million years ago represents a milestone in mammalian evolution, scientists said on Thursday, boasting a key ...

At a time when the vast majority of mammals were the size of shrews and mice, Vintana sertichi was a super heavyweight. Researchers have unearthed the skull of a primitive mammal with remarkably keen ...

A newly identified primitive mammal-like animal was agile, sleek and had a voracious appetite for meat. The animal, identified as a varanopid pelycosaur and part of the genus Aerosaurus, looked like ...

Which group of mammals has the more 'primitive' reproductive strategy -- marsupials, with their short gestation periods, or humans and other placental mammals, which have long gestation periods? For ...

Paleontologists in Japan have unearthed the jaw of a primitive mammal from the early Cretaceous period. The pint-size creature, named Sasayamamylos kawaii for the geologic formation in Japan where it ...

Jan. 4 -- The specialized teeth that enabled ancient, shrew-like creaturesto flourish and gave rise to all modern mammals evolvedindependently in two animal groups living continents apart, a ...

Above: Artist's depiction of three new species of fossil condylarths: From left to right, Conacodon hettingeri, Miniconus jeanninae and Beornus honeyi. (Credit: Banana Art Studio) Paleontologists at ...

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