Leatherback turtles are remarkably versatile divers. Routinely diving to depths of several hundred meters, leatherbacks are occasionally known to plunge as deep as 1250 meters. The animals probably plumb the depths to avoid predators, search for prey and avoid heat in the tropics. However it wasn’t clear how these mammoth reptiles regulate their buoyancy as they plunge down.
How Diving Leatherback Turtles Regulate Buoyancy