Tasmanian devil

The Tasmanian Devil (Sarcophilus laniarius) is only found in the Australian island state of Tasmania. Head to body length can reach up to 65 cms and weighs around 8 kilograms, which makes it the largest carnivorous marsupial in the world. You can tell by the tail of a Tasmanian devil how healthy it is, because it stores fat in its tail. If a devil has a large tail it means it is healthy, if it is unhealthy it has a thin tail. When agitated the devil can emit a strong odor, equivalent of that of a skunk. If you correct the bite force for body size the devil has the strongest bite of any living mammal! (source)

Picture by Wayne McLean, licensed under Attribution ShareAlike 2.5