Researchers found a tiny skull with wide eyes and a cartoonish grin. It could help solve an evolutionary puzzle
By Taylor Nicioli, CNN (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 cartoonish grin — and its name is a nod to an iconic froggy celebrity. Kermit the Frog meet Kermitops gratus, the most recent ancient
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