The eastern grey kangaroo ("Macropus giganteus") is a marsupial that lives in south and east Australia, including Tasmania. It is also called the great grey kangaroo and the forester kangaroo. An eastern grey male weighs about 66 kg (145 lb) and is almost 2 m (7 ft) tall. Its scientific name, "Macropus giganteus" means gigantic (huge) large-foot, and the eastern grey is the second-biggest marsupial on earth. The red kangaroo is the largest. 