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

Australia Zoo Wildlife Hospital has seen a surge of green sea turtles needing treatment for a mysterious disease that appears to "melt" their shells, causing lesions and open wounds on their shells ...

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 ...

When we picture sea turtles in the wild, it's easy to envision them as armored warriors—their hard, resilient shells serving as near-impenetrable shields against oceanic threats like sharks. These ...