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 ...

A green sea turtle is improving after being found stranded on a North Carolina beach with over 1 ½ pounds of barnacles and other organisms on its shell, seashore officials announced over the weekend.

Sea turtles can survive being struck by a boat propeller — but as they heal from the trauma, their shells often change shape, bulging from air building up within their bodies. That throws the animals' ...