Kangaroos are large marsupials that are found only in Australia. They are identified by their muscular tails, strong back legs, large feet, short fur and long, pointed ears. Like all marsupials, a sub-type of mammal, females have pouches that contain mammary glands, where their young live until they are old enough to emerge.
Kangaroos are in the Macropodidae family, which also includes tree-kangaroos, wallabies, wallaroos, quokkas and pademelons. When people think of kangaroos, the four species that typically come to mind are the antilopine kangaroo, the red kangaroo, the western grey kangaroo and the eastern grey kangaroo. They are sometimes referred to as the "great kangaroos" because these species are much larger than other kangaroos.