The Tasmanian Tiger (Thylacinus cynocephalus).

The Tasmanian Tiger (Thylacinus cynocephalus) The Tasmanian Tiger is assumed extinct. The last known specimen died in a Hobart, Tasmania zoo in 1936. Humans were responsible for the extinction, which only took about 70 years, as farmers in the 1800s began shooting, poisoning, gassing, and trapping the animal, blaming it for attacking sheep. A slender, fox-faced animal, the Tasmanian wolf was 100 to 130 cm long, including its 50- to 65-centimetre tail which was very thick, close to the …

…and extensive surveys have been conducted by the Queensland Museum, University of Queensland and by the Qld Departments of Natural Resources and of Environment, as part of a recovery program for threatened frogs of Qld and northern NSW." The most positive outcome will occur if living members of the species can be found. That would mean the animal is not really extinct and breeding programs could be set up to increase the numbers once again.