The golden lion tamarin (Leontopithecus rosalia, Portuguese: mico-leão-dourado [ˈmiku leˈɐ̃w̃ dowˈɾadu], [liˈɐ̃w̃ doˈɾadu]), also known as the golden marmoset, is a small New World monkey of the family Callitrichidae. Native to the Atlantic coastal forests of Brazil, the golden lion tamarin is an endangered species.[5] The range for wild individuals is spread across four places along southeastern Brazil, with a recent census estimating 3,200 individuals left in the wild[6] and a captive population maintaining about 490 individuals among 150 zoos.[3][7][8]