Leatherback Turtle, is a sea turtle friend in Abyssrium.
To unlock Leatherback Turtle is necessary to open the Mystery Chest 50 times.
Leatherback turtle is the largest of all living turtles, with around 2.2 m (7.2 ft) and 384 kg (847 lb), they're the fourth largest living reptile losing to Orinoco crocodile, Nile crocodile, and saltwater crocodile. They have the most hydrodynamic body of all turtles with a tear-like shape, also they lack of a bony shell, hence the name. Instead, itscarapace is covered by skin and oily flesh. They're the only leathery turtle to be alive. They love to eat jellyfish, but due to that, they're very vulnerable to plastic bags floating in the sea.
In real-life leatherback turtles, are fully black, but in-game only their shell is black.