Quokka (Setonix brachyurus) looks a little like a dumpy kangaroo, giving rise to its alternative common name of Shorttailed Wallaby. Herbivorous and mainly nocturnal, it is endemic to the south-western corner of Western Australia and most numerous on Rottnest and Bald Islands.
Christmas Island Shrew (Crocidura trichura) is extremely rare, possibly extinct. It was thought that this forest-dwelling mammal had vanished by 1908, but after an unconfirmed sighting in 1958 it was rediscovered in 1985, when two individuals were caught.
Dugong (Dugong dugon) gets its name from the Malay language, in which duyung means “lady of the sea” or “mermaid.” It is known to occupy the waters of the Indo-Pacific, from the east coast of Africa to the central Pacific. A single male inhabiting the waters of Cocos (Keeling) Islands since 2002 demonstrates the species is capable of long-distance migration to colonise new environments.
Southern Elephant Seal (Mirounga leonina) inhabits mainly subantarcticregions. It spends most of its time at sea, usually between the north edge of the pack ice and the subantarctic convergence. It returns to land to breed, to give birth and to moult.