Discover what’s inside a turtle shell, living bone fused to spine and ribs, packed with organs, muscles, and nerves that ...

Touren Pope was rockhounding in the Greater Green River Basin when he found a remarkable foot-long fossil. It turned out to be the shell of a ...

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 ...

The U.S. Fish and Wildlife Service will add new protections for a rare turtle whose ridged shell looks like a topographic map, with the goal of keeping it from going extinct. The federal agency has ...