Leta Bak Totel are found in tropical and temperate regions of the world, with small numbers nesting in Vanuatu. The shell is made of soft leathery skin with seven ridges or keels. The colour is mostly black with differing amounts of pale spotting, including a pink spot on the heads of adults. It has paddle-like limbs that are clawless and black with white margins and pale spots. Hatchlings are predominantly black with white margins on their flippers and keels on the shell.
The Leta Bak Totel has a shell that is a soft leathery skin with seven ridges or keels. It is the only sea turtle without a hard shell. It has no teeth and uses its sharp beak to catch food.
The Leta Bak Totel grows up to 180 cm long and weighs up to 700 kg.
Leta Bak Totels are highly active with individuals spending as little as 0.1% of the day resting. They are one of the deepest-diving marine animals and can move very fast. They are mostly found in open ocean. They follow their preferred prey into deeper water during the daytime and into shallower water at night. Adults can undertake long-distance migration between cold feeding waters and tropical or subtropical beaches where they hatch. Unlike other sea turtles, Leta Bak Totel do not always return to their hatching beach to nest.
Leta Bak Totel eat mostly jellyfish, but will also take other soft-bodied creatures. Its favourite food is the venomous Portuguese man-o-war jellyfish.
They prefer to breed on beaches that face deep water and avoid locations protected by coral reefs. Mating occurs at sea and males never leave the water once they enter as hatchlings. Females mate every 2 to 3 years and can nest up to 10 times in a single nesting season. As many as 9 clutches are laid by a single female in a breeding season, spaced around 9 days apart. Clutch size is around 110 eggs.
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The Leta Bak Totel is the only species of sea turtle without a hard shell.