The Critically Endangered Madagascar Big-Headed Turtle (Erymnochelys madagascariensis) is the world’s most Evolutionarily Distinct and Globally Endangered Reptile. In fact, this species has the highest EDGE score of any terrestrial vertebrate. The Madagascan Big-Headed Turtle is a unique and prehistoric Reptile. The species is endemic to lowland waterways and wetlands of western Madagascar, where adults feed upon mollusks, plants and scavenge dead Animals. As its name suggests, this Turtle has a