The little internationally-known Thylacine resembled a large, short-haired dog with distinctive dark stripes across its back, rump and the base of its tail, which earned the animal the nickname Tiger, dating back as far as the early Miocene, and thought to have become extinct in the 20th century, although sightings are still allegedly reported in current times. Thylacine Benjamin yawning in 1933. Photo author unknown, license expired. ThylacinesGreek for dog-headed pouched onewere the largest kn