Kermit the Frog' creature that lived 270 million years ago looked like a 'stout salamander' with 'cartoonish grin

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Scientists found the ancient amphibian fossil in the collection at the Smithsonian’s National Museum of Natural History.

Kermit the Frog' creature that lived 270 million years ago looked like a 'stout salamander' with 'cartoonish grin : Read more