Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think.

Turtles have shells that they can hide inside of when they feel like they’re in danger or when they are feeling anti-social and want everything around them to disappear. On the other hand, do turtles ...

Add Yahoo as a preferred source to see more of our stories on Google. Shell integration typically involves 50 to 60 individual bones fusing into a permanent structural cage. The carapace creates a ...

Sometimes animated turtles seem to live inside their shells like it’s a tiny home. They may even hop out of the shell and run around. That’s funny in cartoons and games, but my friend Ryan Wagner told ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...