An old photo of a Tasmanian Tiger kept at the Bronx Zoo

The thylacine, now extinct, is one of the largest known carnivorous marsupials, budding about 4 million years ago. The last known live animal was captured in 1933 in Tasmania. It is generally known as the Tasmanian tiger because of its striped lower back, or the Tasmanian wolf because of its canid-like characteristics. It was native to Tasmania, New Guinea, and the Australian mainland.
The thylacine had become extremely rare or extinct on the Australian mainland before British settlement of the continent, but it survived on the island of Tasmania along with several other endemic varieties, including the Tasmanian devil. Intensive hunting encouraged by bounties is generally blamed for its extinction, but other contributing factors may have been disease, the introduction of dogs, and human encroachment into its habitat.