The turtle's shell may serve as a protective shield nowadays, but ancient turtles actually developed shells for an entirely different reason, a new study finds.

Island's popularity is to blame for low rate of baby turtle hatches.

A 2,500-year-old grave full of butchered turtle carcasses has been found at an archaeological site in Turkey.

Galápagos tortoise mating involves neck competitions, harassment and lengthy sperm storage.

More than 300,000 sea turtles were likely in the the Gulf of Mexico area affected by the Deepwater Horizon oil spill. The turtles' far-flung journeys suggest the spill's impact reaches far and wide.

Paging Charles Darwin: The island of Santa Cruz within the Galápagos has not one but two distinct species of giant tortoise, a new genetic study finds.

Below the tropical waves near the Solomon Islands, nighttime divers spotted a psychedelic vision: an endangered sea turtle glowing bright red and green.