Arjan Mann (right), a Smithsonian postdoctoral paleontologist and former Peter Buck Fellow, and Calvin So (left), a doctoral student at George Washington University, holding the fossil skull of ...

One crawled across the rain-drenched ground of what is now Texas more than 270 million years ago, possibly feasting on fast-moving insects. The other endeared himself to millions as the banjo-playing ...

Add Yahoo as a preferred source to see more of our stories on Google. Paleontologists with the Smithsonian National Museum of Natural History have discovered a previously unknown prehistoric species — ...

Scientists have discovered evidence of a prehistoric species of amphibian that could be the precursor to modern species − and they bestowed upon it the great honor of being named after a green froggy ...

The species seemed to have bug eyes and a smile, so a team of researchers named it Kermitops gratus in honor of the banjo-playing Muppet. By Michael Levenson One crawled across the rain-drenched ...

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The skull possesses a mishmash of traits that were different from features seen in the skulls of older tetrapods, the ancient ancestors of amphibians and other living four-legged vertebrates. For ...

(CNN) — Paleontologists with the Smithsonian National Museum of Natural History have discovered a previously unknown prehistoric species — a 270 million-year-old amphibian with wide eyes and a ...