Cartoons often suggest turtles wear shells like removable armor. Those stories show turtles stepping out, swapping shells, or treating them like clothing. Biology disagrees. A turtle shell is not an ...

Turtles with shell-cracking jaws were far more likely to survive extinction due to their ability to be sustained on a restricted diet.

By studying the chemical fingerprints inside each layer, scientists have been able to learn about the turtles’ lives and the ...