The Tasmanian Tiger earned its name because of the distinctive stripes along its lower back and tail, which were actually more reminiscent of a hyena than a big cat. In fact, though, this "tiger" was a marsupial, and thus more closely related to wombats, koala bears and kangaroos. (Another nickname, the Tasmanian Wolf, is more apropos, given this predator's resemblance to a large dog.) The animal, which was native to continental Australia, Tasmania and New Guinea, is thought to have become extinct in the 20th century, although sightings are still being reported, yet none have been proven.