One of the most telltale features of a turtle is its protective shell, and regardless of the species, most turtle shells are discernably similar. Despite what you might see on cartoons, a turtle’s ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The broad-shelled river turtle (Chelodina expansa) falls into a group known as side-neck turtles.

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 ...

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 ...