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 ...

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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 ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. The leatherback sea turtle offers a rare look into ...

Sea turtles can survive being struck by a boat propeller — but as they heal from the trauma, their shells often change shape, bulging from air building up within their bodies. That throws the animals' ...