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There are at least seven species of Sea Turtles.Six of these
-the green turtle ,the flat back ,the hawksbill ,the loggerhead ,the Atlantic
ridley ,and the Pacific ridley have bony scute-covered shells. Most zoologists classify
these turtles into one family . The leatherback forms its own family . It's shell
has far fewer bones then the others and is covered with skin rather than scutes. Most sea
turtles live in warm seas throughout the world. The leatherback often lives in cold
Canadian waters. All except the Australian Flatback may be found in the
coastal waters of the United States. Sea Turtles rank as the largest species. Even the
small ones, ridleys, grow up to twenty-eight inches long and weigh at least 100 pounds. A
leatherback may measure 8 feet long and weigh nearly 1,005 pounds. Sea turtles swim by
beating their flippers like a bird does when it flies. Other Sea turtles swim with a
back-and-forth paddling motion. Sea Turtles can not hide for shelter in their shell, so
they depend on the size and swimming speed for defense. Female Sea turtles do not normally
leave the water but go to lay eggs. Most males never return to land after entering the sea
as hatchlings. The females often migrate thousands of miles to reach their breeding
beaches. They drag themselves onto the beach, lay their eggs, and go back to sea. Female
Sea turtles are almost completely helpless when they are on land.
Leatherback Sea Turtle
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