Backlegged dolphin

Backlegged dolphin is a species of dolphin that is considered as a "living fossil" due to having back legs unlike any other modern cetacean. Backlegged dolphins are native to the Mediterranean seas, where they feed on fish, crustaceans, and cephalopods. They are about the size of a Pacific bottlenosed dolphins, in which also looks very similar, other than having back legs. Currently, they are listed as Least Concern as they do not appear to be declining.