0 a small wallaby (= an animal with a long tail and strong legs for jumping with) that in the past existed in great numbers in Western Australia
Number of neurons in the retinal ganglion cell layer of the quokka wallaby do not change throughout life.
There are a few mainland mammals including the quokka.
Like other marsupials in the macropod family (such as the kangaroos and wallabies), the quokka is herbivorous and mainly nocturnal.
Less well-known species of marsupials include the numbat, bandicoots, bettongs, the bilby, quolls, and the quokka.
The quokka was also once found within the area but have been wiped out by foxes.