The LEATHERBACK SEA TURTLE! These incredible creatures (Dermochelys Coriacea) have been around since Dinosaurs roamed the Earth! The Leatherback Sea Turtle is able to regulate its own body temperature, to a point where even Arctic Waters wouldn't be able to harm them! Animal Fact: This Sea Turtle is Threatened by overfishing via nets. Listed as Vulnerable on the IUCN, their population has been decreasing.