two turtles underwater

Wildlife Fact Sheet

Green Sea Turtle

Chelonia mydas

Endangered
Lifespan | More than 70 years old
Habitat | Shallow waters near the surface
Range | Tropical and subtropical waters near the coastline
Preferred Food | Sea grasses and algae

About

Green sea turtles are unique—they are one of the largest species of turtle and the only sea turtle that is strictly herbivorous as an adult (although juvenile green sea turtles will also eat crabs, sponges and jellyfish). Green sea turtles eat sea grasses and algae, which results in the green-colored fat and cartilage that inspired their name. Like all sea turtles, green turtles have a protective shell but can’t pull their head and flippers inside like land turtles can.

Green sea turtles nest on the same beach where they hatched. Since they don’t reach sexual maturity until at least 20 years old, this is even more impressive. So, how do they find their way home more than 20 years later? Green sea turtles actually use the Earth’s magnetic forces to navigate their way home. At night, they crawl onto the beach and lay somewhere between 85-200 eggs under the sand. After two months, the juvenile sea turtles will emerge to dodge predators like birds and crabs in a mad dash to the ocean.

Did You Know?

Like humans, green sea turtles breathe oxygen. Unlike humans, they can spend up to two hours underwater before they need to come up to the surface to breathe. Green sea turtles can also survive by drinking salt water because are able to excrete the extra salt through “salt glands” behind their eyes.

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Fast Facts

  • Green Sea Turtle Weight
  • Green Sea Turtle Dark Shell Variant