Green sea turtle at Bora Bora. Green sea turtles are able to hold their breath for hours at a time. Because they are cold-blooded, the temperature of the water affects their ability to hold their breath. Photo by: Michele Westmorland

Super-star of the beach. Often the giant tortoises will wander onto the beaches to eat washed-up seedpods. Photo by: Thomas Peter Peschak

Baby desert tortoise hatching from its egg. Photo by: K. Kristina Drake

Sea turtle riding a jellyfish. Photo by: Super Jolly

140 year old turtle mom with her 5 day old son. Photo by: Attila Balazs

The albino African spurred tortoise, also called the sulcata tortoise, is a species of tortoise, which inhabits the southern edge of the Sahara desert, in northern Africa. Photo by: unknown

Turtles laying millions of eggs on a beach. Photo by: Olivier Blaise

Tiny turtle swimming in the ocean, Florida. Photo by: Ben Hicks | National Geographic

Green sea turtle getting cleaned by yellow tang and gold-ring Surgeonfish. Photo by: Masa Ushioda

Giant tortoises in pond. Photo by: Frans Lanting

Happy little turtle. Photo by: unknown

Baby turtle running to the sea. Photo by: unknown