The shells of turtles, tortoises, and sea turtles show a remarkable connection to our 20th-century nuclear history. This astounding revelation comes to light in a new study, which casts an enduring ...

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

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.

On a spring day in 1978, a fisherman caught a tiger shark in the lagoon surrounding Enewetak Atoll, part of the Marshall Islands in the north Pacific. That shark, along with the remains of a green sea ...

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 ...

Painted turtles sunning themselves in a pond. Why are sea turtles endangered? Discover the human impact on North American turtles and learn about the steps we can take to help. When I was young, my ...

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 ...