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The American koala (Ursadelphadon arborealis), also known as the marsupial indri, the marsupial binturong, and the koala opossum, is a species of New World marsupial and the only living member of the family, Ursadelphadontidae, that originally did not exist, but has since been created by SciiFii and introduced throughout the rainforests, swamps, forests, and open woodlands across North America and South America to help boost biodiversity. The closest living relatives of the American koalas are the opossums, including Virginia opossums. The American koala is easily recognisable by its stout body with a short, stubby tail and large head with small, fluffy ears and large, spoon-shaped nose. The American koala has a body length of 60–85 cm (24–33 in) and weighs 4–15 kg (9–33 lb), about the same size as the true koalas of Australia. Fur colour ranges from black, to dark gray, to dark brown. American koalas from the southern populations are typically smaller and lighter in colour than their counterparts further north. American koalas are purely herbivorous and the leaves of any kind of trees make up most of their diet in the wild, filling the niche similar to Australia's true koalas and Madagascar's indris, although the American koalas raised in captivity will happily feed on fruits such as bananas and grapes. Because the American koala's leafy diet has limited nutritional and caloric content, American koalas are largely sedentary and sleep up to 16 hours a day. They are asocial animals, and bonding exists only between mothers and dependent offspring. Adult males communicate with loud bellows that intimidate rivals and attract mates. Males mark their presence with secretions from scent glands located on their chests. Being marsupials, American koalas give birth to underdeveloped young that crawl into their mothers' pouches, where they stay for the first six to seven months of their lives. These young American koalas, known as joeys, are fully weaned around a year old. American koalas have various natural predators, such as golden eagles, woodward's eagles, big cats, American black bears, and goblins (Dromaeosauridae). The conservation status of the American koala is Least Concern due to successful conservation efforts, the American koala's wide range and its tolerance to many of the human activities.