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
Economy of Papua New Guinea Singapore (5.6%). In 2014, Papua New Guinea's merchandise imports were: Major source countries for merchandise imports include Australia (34.4%), Singapore (14.3%), the European Union (8.3%), China (6.9%), and Japan (6.4%). Petroleum, mining machinery and aircraft have been the primary U.S. exports to Papua New Guinea. In 1999, as mineral exploration and new minerals investments declined, as did United States exports. Crude oil is the largest U.S. import from Papua New Guinea, followed by gold, cocoa, coffee, and copper ore. U.S. companies are active in developing Papua New Guinea's mining and petroleum sectors. Chevron operates the Kutubu and Gobe oil projects