When you buy through links on our articles, Future and its syndication partners may earn a commission. The broad-shelled river turtle (Chelodina expansa) falls into a group known as side-neck turtles.

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, ...

SAN DIEGO (KGTV) — A tweet from a UCSD Postdoc went viral this month. Turtle expert Ceri Weber posted that a turtle's shell is actually not a shell at all, but rather a set of modified ribs. It's true ...

Humongous Turtle Shell Unearthed. This shows an 8-million-year-old turtle shell that measured nearly 8 feet (2.4 meters) was ...

The ocean can be an extremely dangerous place, even for an animal that migrates through and rides its currents for decades.

A recent tragedy occurred in Indian River County, Florida when an elderly man tried to save a turtle. The reptile was slowly creeping across I-95 when an 87-year-old Vermont native attempted to help ...

The sea creature arrived at San Diego's Birch Aquarium in 2014 Ingrid Vasquez is a Digital News Writer at PEOPLE. She graduated from The University of Texas at Austin with a Bachelor in Journalism.

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 ...