Fauna of New Guinea Guinea. However, the tree-kangaroos, which are mostly endemic to New Guinea, are different in appearance and behaviour. As suggested by their name, they are arboreal. They have long, thick tails which enable them to balance in trees, and large, strong forearms for gripping to trees. Two species of tree kangaroos are also found in Australia, they are believed to have migrated from New Guinea during the Pleistocene. The cuscus, family Phalangeridae, are a family of marsupials closely related to the possums of Australia. The cuscus have evolved in New Guinea, and are found throughout the island. Most species are dark
Australia–Papua New Guinea relations Australia–Papua New Guinea relations Australia–Papua New Guinea relations are the foreign relations between Australia and Papua New Guinea. Papua New Guinea is Australia's closest neighbour (with roughly 6 km separating the two countries at the nearest point, and with both nations sharing the same continent), and a former dependent territory of Australia. Papua New Guinea has developed much closer relations with Australia than with Indonesia, the only country with which it shares a land border. The two countries are Commonwealth realms, and Papua New Guinea benefits from economic development aid from Australia. The southern half of eastern New Guinea (the