Juan Carlos Munoz / Golden-headed lion tamarin (Leontopithecus chrysomelas) captive portrait, Apenheul Park, Netherlands.

Claus Meyer / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) portrait, Atlantic Forest ecosystem, Brazil

Claus Meyer / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), Atlantic Forest, Brazil

Anup Shah / Portrait of Golden headed lion tamarin {Leontopithecus chrysomelas} endangered species native to Brazil

Pete Oxford / Golden headed lion tamarin {Leontopithecus chrysomelas} occurs Bahia, Brazil

Ernie Janes / Golden-headed lion tamarin (Leontopithecus chrysomelas) portrait, captive, occurs in Brazil.

Edwin Giesbers / Golden headed lion tamarin (Leontopithecus chrysomelas) captive occurs in Brazil. Endangered species.

Roland Seitre / Golden-headed tamarin (Leontopithecus chrysomelas) captive, Monkey Valley Zoo / Zoo La Valle des Singes, Romange, France. Endangered species. Endemic to Brazil.

Roland Seitre / Golden-headed Tamarin (Leontopithecus chrysomelas) feeding, standing on arm of human wearing Golden headed tamarin t-shirt, captive. Endangered species. Endemic to Brazil.

Roland Seitre / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), La Vallee des Singes Primate Center, Romagne, France

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) in tree, native to Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) in tree, native to Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) calling, native to Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) displaying, native to Brazil

Luiz Claudio Marigo / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) sitting on tree branch, Atlantic Rainforest of Southern Bahia, municipality of Una, southern Bahia State, Eastern Brazil. August

Rod Williams / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) portrait, sitting on tree stump. Captive, found in Brazil (Bahia State) Endangered.

Edwin Giesbers / Golden headed lion tamarin (Leontopithecus chrysomelas) Endangered species occurs in Brazil. Captive, Netherlands.

Luciano Candisani / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) emerging from its sleep den in the trunk of a tree, Bahia, Brazil

Rod Williams / Golden headed lion tamarin {Leontopithecus chrysomelas} captive, from Bahia state, Brazil

John Downer / Golden headed lion tamarin {Leontopithecus chrysomelas} captive, Brazil, endangered

Claus Meyer / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) portrait, Atlantic Forest ecosystem, Brazil

Claus Meyer / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) portrait, Atlantic Forest ecosystem, Brazil

Mark Moffett / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) emerging from its sleep den in the trunk of a tree, Atlantic Forest, Ilheus, Bahia, Brazil

Mark Moffett / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) with a radio collar stretching out in the forest canopy, Atlantic forest, Brazil

Norbert Wu / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) portrait, Amazon rainforest, Brazil

Dave Watts / Golden headed lion tamarin carrying young {Leontopithecus chrysomelas} captive, occurs Brazil

Rod Williams / Golden headed lion tamarin + young {Leontopithecus chrysomelas} endangered, from

John Downer / Golden Headed Lion Tamarin {Leontopithecus chrysomelas} Endangered species native to Brazil

Pete Oxford / Golden headed lion tamarin portrait {Leontopithecus chrysomelas} Bahia, Brazil

Rod Williams / Male Golden headed lion tamarin - endangered species occurs Bahia, Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to Brazil

Thomas Marent / Golden-headed Lion Tamarin (Leontopithecus chrysomelas) in tree, native to Brazil

Rod Williams / Golden headed Lion Tamarin {Leontopithecus chrysomelas} resting on tree trunk, captive.

Rod Williams / Golden headed lion tamarin {Leontopithecus chrysomelas} captove, occurs Brazil

John Downer / Golden headed lion tamarins grooming. Brazil, captive {Leontopithecus chrysomelas}

Juergen & Christine Sohns / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to South America

Juergen & Christine Sohns / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to South America

Juergen & Christine Sohns / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to South America

Juergen & Christine Sohns / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), native to South America

ZSSD / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), captive

ZSSD / Golden-headed Lion Tamarin (Leontopithecus chrysomelas), captive

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) climbing tree, coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Two Golden-headed lion tamarin (Leontopithecus chrysomelas) in tree, coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) siting in Bamboo, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) feeding on jackfruit, coastal rainforest, Mata Atlantica, Bahia, Brazil.

Konrad Wothe / Golden-headed lion tamarin (Leontopithecus chrysomelas) portrait, coastal rainforest, Mata Atlantica, Bahia, Brazil.