The quokka (Setonix brachyurus) is a small macropod about the size of a domestic cat. Like kangaroos and wallabies, the quokka is herbivorous and mainly nocturnal. br/br/In the wild, it survives in only in the South-West of Western Australia, with a number of small scattered populations on the mainland, one large population on Rottnest Island and a smaller population on Bald Island near Albany. Both of these islands are fox and cat free.br/br/The quokka has no fear of humans and it is common for it to approach them closely, particularly on Rottnest Island.