Green turtles have a single pair of scales in front of their eyes rather than two pairs like other sea turtles have.
The green turtle is the largest hard-shelled sea turtle; adults commonly grow over 3 feet in length and weigh over 300 pounds.
Green turtles are outfitted with large, heart-shaped shells covered with horny plates. The shells are black, gray or brown (not green) — the green turtle gets its name from the green color of fat underneath its shell.
