It's a long-held idea that turtles can tuck their heads into their shells when threatened. But is it true? And is this protective trick why turtles the world over have shells today? The answer is that ...

Deep under the surface of the South China Sea, a new species waits buried in the sand. Matt Hardy via Unsplash More than 4,000 feet below the ocean’s surface, a crack in the seafloor spews gases into ...

Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think. When you purchase through links on our site, we may earn an affiliate ...