The Leatherback Turtle: Earth’s Colossal Marine Reptile Without a Traditional Shell

The leatherback turtle (Dermochelys coriacea) holds the title of the world’s largest turtle, capable of weighing up to 900 kilograms. Unlike other turtles, it lacks a hard bony shell. Instead, its back is supported by a flexible framework of bones covered by thick, rubbery skin, giving it a unique, leathery appearance that distinguishes it from all other chelonians.