Polu-polu translates from Utapangan to mean literally, “two heads”, and it’s easy to see why this island salamander is so named.  Storing fat is only one of the functions of its large tail. When approached by a predator, the polu-polu quickly does a literal about face and presents its tail to the attacker, waving it violently. And this amphibian will actually walk backwards at the attacker, provoking the attack.