This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest ...

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 ...

"This very young juvenile would typically be spending his day eating small crustaceans that thrive in seaweed mats circling the Gulf of Mexico until it is large enough to dive down to the reef," the ...