The Mico-leão Dourado (Leontopithecus rosalia) is a monkey native to the Atlantic Forests of Brazil. It´s an endangered species. The Mico-leão Dourado has reddish orange to golden brown in color. Its hair is longer and darker around the face, forming a mane on top of the head and on the cheeks and throat. Although quite long, its tail is not prehensile. The tail and forepaws of the Mico-leão Dourado may have a black coloration. Its body may be up to 35 cm long and its tail up to 40 cm. The Mico-leão Dourado is diurnal and primarily arboreal, forming small groups of patrols a consistent territory of around 100 acres); by night, the Mico-leão Dourado sleep in abandoned nesting holes in trees, or in large bromélias. Resources are shared among the group, as are predator surveillance duties. The young are well cared for until adolescence. Its main predators are raptors, large cats and snakes. Tree canopies provide an important source of food; the omnivorous Mico-leão Dourado rely on rainwater and insects concentrated in the reservoirs of Bromélias and other small animals inhabiting the bark of trees. Fruit is also consumed.