A turtle's shell is part of the reptile's skeleton, and it protects some of the strangest features in the animal kingdom. Here's what's inside.

The gradual origin of the turtle shell with two hypothetical ancestors, from an animal with isolated lumps of armour, to one with a complete shell A newly identified fossil could explain one of ...

Turtles are interesting creatures as they can hide in their shell, but people are only just realising that they're not "inside" their shell, the shell it actually part of their spine.

In 2008, the discovery in China of a nearly 220 million years old fossil of an undisputed turtle precursor, represented a major advance in our understanding of the evolution of the turtle shell.