The Thylacine was the largest known carnivorous marsupial and lived in Australia, New Guinea and Tasmania. Known as both the Tasmanian Tiger and Tasmanian Wolf, it is believed that thylacines were hunted to extinction in the 20th century. Although sightings are still reported, scientists are skeptical because, for the most part, people are idiots. Sharing a startling degree of physiological adaptations with canines and markings similar to tigers, the thylacine is an often-cited example of convergent evolution. It's closest living relative is the Tasmanian Devil, which, sadly, has also seen better days. The video below shows one of the last known living thylacines, shortly before it died in captivity.