The division from the Indomalayan ecozone is the Wallace Line, named after the naturalist Alfred Russel Wallace who identified the differences between the islands either side of the line.

From a biological point of view, Australasia is a distinct region with a common evolutionary history and a great many unique plants and animals, some of them common to the entire area, others specific to particular parts but sharing a common ancestory.

There are 13 endemic bird families including emus, cassowaries, kiwis, kagu, cockatoos, bird-of-paradise, and honeyeaters

See also: Australasia, List of Australasia ecoregions

External link :

Map of the ecozones