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 trick why turtles the world over have shells today? The answer is that ...

A 260 million-year-old fossil has been determined to be the oldest ancestor of turtles found to date, revealing something about the reptile's mysterious past. Michelle Starr is CNET's science editor, ...

Gareth Dyke does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

About five to 10 million years ago, giant turtles that dwarfed humans roamed freshwater swamps in South America. Researchers have uncovered shells belonging to Stupendemys geographicus, the largest ...

Critically endangered, radiated tortoises sport star patterns on their shells and live in the forests and scrubland of Madagascar. (Images courtesy Smithsonian's National Zoo) People often use the ...

Turtle shells evolved over the course of 300 million years, but self-defense wasn't the initial driver, researchers think. When you purchase through links on our site, we may earn an affiliate ...