Japanese-Tasmanian Devil, a marsupial has the reputation of being a vicious killer of sheep and cats. Unlike the Tasmanian counterpart, the common Tasmanian devil, the Japanese-Tasmanian devil is immune to nonnative and native diseases, so it isn't endangered, and it has a powerful jaw and fangs that enable to crush 1,000 of bones of its prey in one time and it lives in the forest of Japan.