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 Somare being barred from entering Australia. In 2001, relations were very good. A detention center was built on Manus Island, in Papua New Guinea, as part of Australia's "Pacific Solution". Refugee claimants seeking asylum in Australia were sent to Manus Island (or Nauru), and Australia paid for the costs of their detention, providing Papua New Guinea with economic aid. The last inmate was Aladdin Sisalem, who was kept in solitary confinement from July 2003 until he was finally granted asylum in Australia in June 2004. Australia continued to pay for the upkeep of the empty detention center until late 2007.