It is named not for the color of its shell, which is normally brown or ... Weighing up to 700 pounds green turtles are among the largest sea turtles in the world. Their proportionally small ...

Leatherbacks are the largest turtles on Earth ... While all other sea turtles have hard, bony shells, the inky-blue carapace of the leatherback is somewhat flexible and almost rubbery to the ...