A mere hour or so away from the concrete jungle of Rio de Janeiro is a verdant rainforest reserve that is notable for being the last stronghold of one of the most endangered primates on earth: the dazzling little golden lion tamarin. The golden lion tamarin is a species endemic to the state of Rio, meaning that it’s the only place in the world these animals can be found in their native habitat. They inhabit the Atlantic Forest and live in small family groups which center around a monogamous adult…
