The common Wallaroo (also known by euro (though this is also used in connection with a specific subspecies), hill wallaroo, or simply wallaroo) is a species of macropod. It is not that dissimilar to the kangaroo, or indeed a wallaby, and perhaps quite unsurprisingly, it is a species that lies (in size) between a wallaby and a kangaroo, hence its name.

There are four subspecies:

the eastern wallaroo – found in eastern Australia; males of this subspecies have dark grey fur, almost resembling the black wallaroo  Females are lighter, being almost sandy in colour.

the euro or western wallaroo  – found covering most of the species’ remaining range to the west; this subspecies is variable, but mostly brownish, in colour.

the Barrow Island wallaroo – this subspecies is restricted to Barrow Island in Western Australia and is comparatively small. It is uniformly reddish-brown. It is considered Vulnerable

the Kimberley wallaroo – this subspecies is found in the Kimberley region of Western Australia and in a band roaming through the Northern Territory. It is the palest of the four subspecies and is a dull brown-grey colour. Kunwinjku of western Arnhem Land call this subspecies ngabudj. They also have separate names for male and female, galkibard and wallaar, respectively. A large male is called ganduki. This animal manages well in areas without permanent water and on a diet of nutrient-poor grasses, but it does need shelter.

The eastern wallaroo —which is dark grey in colour—occupies the eastern slopes of the Great Dividing Range, and the euro—which is mostly brownish in colour—occupies the land westward.