Distribution: It is found in Australia and Tasmania.
Habitat: Their habitats include freshwater lakes, lagoons and streams.
Physical features: The body weight varies from 0.5 to 2.5 kg. The flattened body is covered with dense, short and fine hair with coarse guard hair. The other salient features include dark brown hairs, longer hind limb, both limbs armed with five claws, and flat and broad tails.
Life span: The life span is 10-15 years or more. However, their longevity is more in captivity than in the wild.