The name thylacine roughly translates as 'dog-headed pouched one'. It was one of the world's largest pouched carnivore. It was also called Tasmanian tiger due to stripes on its back. It is estimated that at least 3500 thylacines were killed through human hunting between 1830 and the 1920s. The introduction of competitive species such as wild dogs, foreign diseases including mange, and extensive habitat destruction also greatly contributed to thylacine population losses.