The coastal rain forest in southeastern Brazil is the only known natural habitat of the mico or golden lion tamarin, a small monkey about the size of a squirrel. With 98% of the Brazilian rain forest depleted, wild micos are becoming scarce but thanks to the tireless efforts of Andreia Martins and other Brazilian conservationists, micos born in captivity in zoos are slowly and successfully being introduced back into the wild. A lively text and color photographs document the painstaking work of Andreia, in addition to describing the habits of the mico and the reasoning behind human efforts to protect its native home. (Ages 7-11)