Golden Lion Tamarin, Smithsonian National Zoological Park

The Golden Lion Tamarin (Leontopithecus rosalia) also known as Golden Marmoset, is a small New World monkey of the family Cebidae. Native to the Atlantic coastal forests of Brazil, the Golden Lion Tamarin is an endangered species and among the rarest animals in the world, with an estimated wild population of 1,000 individuals and a captive population of approximately 500.