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

Narrator: A turtle's shell is as much a part of its body as our rib cage is of ours. In fact, it is their rib cage, and their spine, and their vertebrae, and their sternum. Basically, a turtle's ...

Dr. Universe: Why can’t sea turtles pull back into their shell? I was at the St. Louis Zoo, and they said tortoises and other turtles can pull back into their shells. – Tyler, 7, Missouri There are ...

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 ...

This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest freshwater giant.

An artistic rendering shows an early proto turtle Eunotosaurus (foreground) burrowing into the banks of a dried-up pond to escape the harsh arid environment present 260 million years ago in South ...

Move over, Teenage Mutant Ninja Turtles — there is a new, shell-backed badass in town. In a study published Wednesday in the journal Science Advances, researchers announced the discovery of a ...