Thylacine (Tasmanian Tiger)

The Thylacine (or Tasmanian Tiger and Tasmanian Wolf) is a carnivorous marsupial that resembles a wolf. Unlike any known mammal, its jaw can open wider and has sharp teeth to slice through flesh. Its taste for sheep caused it to be hunted to extinction. The last known thylacine (named Benjamin, who's actually a female) died in Hobart Zoo in 1936. Fortunately, some people are now convinced that this was not the end of the tigers.

Description
Eyewitnesses report seeing a wolf-like creature with distinctive dark brown stripes and a large head. The beast has a jaw that is able to open wider than any known mammal and long razor-sharp teeth, capable of slicing through flesh. This beast measures up to 6 ft. long and can weigh as much as 80 lbs.