Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.

Dave Watts / Golden lion tamarin (Leontopithecus rosalia rosalia) captive in zoo. Occurs in Brazil.

Kevin Schafer / Golden lion tamarin (Leontopithecus rosalia) wild, Poco das Antas Reserve, Atlantic Forest, Southeast Brazil, Critically endangered, November. Did you know? More than 400 Golden lion tamarins have bee...

Rod Williams / Golden lion tamarin {Leontopithecus rosalia} from Brazil, critically endangered species

Rod Williams / Portrait of Golden lion tamarin {Leontopithecus rosalia} occurs Brazil, Rio de Janeiro State

Kevin Schafer / Golden Lion Tamarin (Leontopithecus rosalia) male with baby, Poco das Antas Reserve, Atlantic Forest, southeast Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) portrait, Atlantic Forest, Brazil

Kevin Schafer / Golden Lion Tamarin (Leontopithecus rosalia) portrait, Poco das Antas Reserve, Atlantic Forest, southeast Brazil

Eric Baccega / Keeper feeding a Golden lion tamarin (Leontopithecus rosalia), Beauval Zoo, Saint-Aignan, France.

Eric Baccega / Keeper feeding a Golden lion tamarin (Leontopithecus rosalia) Beauval Zoo, Saint-Aignan, France.

Eric Baccega / Keeper feeding and weighing a Golden lion tamarin (Leontopithecus rosalia), Beauval Zoo, Saint-Aignan, France.

Suzi Eszterhas / Golden lion tamarin (Leontopithecus rosalia) eating a grasshopper, Atlantic Forest, Brazil. June. Digitally removed bright highlights in foreground.

Suzi Eszterhas / Golden lion tamarin (Leontopithecus rosalia) eating a grasshopper, Atlantic Forest, Brazil. June. Digitally removed bright highlights in foreground.

Suzi Eszterhas / Golden lion tamarin (Leontopithecus rosalia) calling from a tree, Atlantic Forest, Brazil. June.

Edwin Giesbers / RF - Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF - Golden lion tamarin (Leontopithecus rosalia) ; mother with baby. Captive, Endangered, from South America (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America;

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America;

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America;

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America;

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, endangered, from South America; mother with baby;

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) mother with baby on back. Captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) captive, occurs in the Atlantic Rainforest of Brazil. Critically endangered.

Roland Seitre / Golden Lion Tamarin (Leontopithecus rosalia) scratching, captive, Montreal Biodome, Quebec, Canada. Endangered species. Endemic to Brazil.

Roland Seitre / Golden lion tamarin (Leontopithecus rosalia) with radio tracking device, captive in zoo, Brazil. Endangered species. Endemic to Brazil.

Kevin Schafer / Golden lion tamarin (Leontopithecus rosalia) wild, Poco das Antas Reserve, Atlantic Forest, Southeast Brazil, Critically Endangered

Kevin Schafer / Golden lion tamarin (Leontopithecus rosalia) wild, Poco das Antas Reserve, Atlantic Forest, Southeast Brazil, Critically endangered, November

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) portrait of adult. Critically endangered; from South America. Captive, the Netherlands.

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) head portrait of adult. Critically endangered; from South America. Captive, the Netherlands.

Edwin Giesbers / Golden lion tamarin (Leontopithecus rosalia) young being nursed by mother. Critically endangered; from South America. Captive, the Netherlands.

Mark Bowler / Golden lion tamarin {Leontopithecus rosalia} captive, Peru, Critically endangered

Mark Bowler / Golden lion tamarin {Leontopithecus rosalia} captive, Peru, Critically endangered

Mark Bowler / Golden lion tamarin {Leontopithecus rosalia} captive, Peru, Critically endangered

Mark Bowler / Golden lion tamarin {Leontopithecus rosalia} captive, Peru, Critically endangered

Mark Bowler / Golden lion tamarin {Leontopithecus rosalia} captive, Peru, Critically endangered

Pete Oxford / Golden lion tamarin {Liontideus / Leontopithecus rosalia} captive, Brazil

Dave Watts / Golden Lion Tamarin (Leontopithecus rosalia rosalia) Captive

Dave Watts / Golden Lion Tamarin (Leontopithecus rosalia rosalia) Captive

Rod Williams / Golden lion tamarin {Leontopithecus rosalia} captive, from Brazil

Rod Williams / Golden lion tamarin {Leontopithecus rosalia} Brazil, endangered

Rod Williams / Golden lion tamarin {Leontopithecus rosalia} C from Brazil. Critically endangered.

Rod Williams / Golden lion tamarin in tree {Leontopithecus rosalia} native to Brazil, South America

Rod Williams / Golden lion tamarin {Leontopithecus rosalia} captive, critically endangered, from South America

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) eating a tree frog, Silva Jardim, Rio de Janeiro state, Atlantic Forest, Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) with baby, Atlantic Forest, Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) with baby, Atlantic Forest, Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) animal from zoo to be released into wild, endangered species, Atlantic Forest, Rio De Janeiro, Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) endangered species, in Atlantic Forest habitat, Rio De Janeiro, Brazil