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 ...

In cartoons, when a turtle is spooked, it retreats into and closes up its shell. While used for comic effect, this imagery is based in fact – although not all turtles are capable of this protective ...

Green sea turtles are protected under the Endangered Species Act. A photo recently posted on social media showing a sea turtle with its shell removed has led state officials to emphasize the proper ...