Head and body length: 40 - 54 cm, Tail: 24.5 - 31 cm
2.7 - 4.2 kg
Estimated at 7,850 - 17,150 mature individuals
Dense swamps, heath, thickets, low forest and waterside areas
Heir and spare. The female quokka is equipped with a pre-embryonic structure called a blastocyst, which develops into an embryo if her joey dies before becoming independent enough to leave the pouch. Nature has also endowed the quokka with bacteria in its guts capable of breaking down the poor-quality vegetation in its environment. Terrestrial but able to climb trees and small shrubs, the little marsupial browses for leaves and grass, and search out the best shelter from the scorching sun in the summer. But all its natural advantages avail it little against the threat of foxes, feral cats, habitat loss and disease.