2008 $1 Land Series Rock Wallaby Coloured Uncirculated CoinRock Wallabys are grey brown kangaroo like marsupial with yellow striped tail, white underside, yellow forearms and yellow feet. They live in rock crevices and caves in semi arid country from South Australia to southwest Queensland. They feed in the cool of dusk and early morning on native grasses, plants and bark. Interestingly with the help of thick, rough pads of skin on its feet to prevent slipping, this wallaby can climb up sloping tree trunks.