The Buergers' Tree-kangaroo (Dendrolagus goodfellowi buergersi) is a subspecies of the Goodfellow's tree-kangaroo from Papua New Guinea, where they dwell mainly in tropical rainforests. Their diet consists of mostly leaves and fruit, which they find both in trees and on the ground. It is believed tree-kangaroos evolved from creatures similar to modern kangaroos and wallabies. The ancestors of all kangaroos are thought to be small marsupials that look like present-day opossums.