The leatherback sea turtle (Dermochelys coriacea), sometimes called the lute turtle or leathery turtle or simply the luth, is the largest of all living turtles and is the fourth-heaviest modern reptile behind three crocodilians. It is the only living species in the genus Dermochelys and family Dermochelyidae.
They can be found in the tropic and temperate waters of the Atlantic, Pacific, and Indian Oceans, as well as the Mediterranean Sea. Adult leatherbacks also traverse as far north as Canada and.
The majority of a sea turtle's body is protected by its shell, which is divided in two: the carapace (dorsal/top) and the plastron (ventral/underside). The shell is made up of smaller plates called scutes. The leatherback sea turtle is the only sea turtle that instead of a hard shell has a leathery skin covering a mosaic of bony plates.
Adult Sea Turtles. Once sea turtles mature, both males and females will leave coastal areas and migrate hundreds or even thousands of miles to breeding areas where they will mate and begin the reproductive stage of their lives.