Lisa Hoffner / Wild Cotton-top tamarin (Saguinus oedipus) appears to fly through the air as it jumps from branch to branch in the dry tropical forest of Colombia, South America. IUCN List: Critically Endangered

Lisa Hoffner / Wild Cotton-top Tamarin (Saguinus Oedipus) on vine, in tropical dry forest of Colombia, South America. IUCN List: Critically Endangered

Lisa Hoffner / Wild Cotton-top tamarins (Saguinus oedipus) climbing up fallen branches in dry tropical forest of Colombia, South America. IUCN List: Critically Endangered

Lisa Hoffner / Wild Cotton-top tamarin (Saguinus oedipus) hanging from hind legs (never before observed behaviour) in the dry tropical forest of Colombia, South America. IUCN List: Critically Endangered

Lisa Hoffner / Portrait of two wild Cotton-top Tamarins (Saguinus Oedipus) resting on vine in tropical dry forest of Colombia, South America. IUCN List: Critically Endangered

Lisa Hoffner / Portrait of wild Cotton-top tamarins (Saguinus oedipus) standing on a branch in dry tropical forest of Colombia, South America IUCN List: Critically Endangered

Rod Williams / Cotton-top tamarin {Saguinus oedipus} portrait. Captive, from Colombia.

Roland Seitre / Cotton-top tamarin (Saguinus oedipus) captive at Cali Zoo, Valle del Cauca, Colombia. Endemic to Colombia. Critically endangered species.

Roland Seitre / Cotton-top tamarin (Saguinus oedipus) captive at Cali Zoo, Valle del Cauca, Colombia. Endemic to Colombia. Critically endangered species.

Roland Seitre / Cotton-top tamarin (Saguinus oedipus) captive at Cali Zoo, Valle del Cauca, Colombia. Endemic to Colombia. Critically endangered species.

Roland Seitre / Cotton-top tamarin (Saguinus oedipus) captive at zoo, Cali, Valle del Cauca, Colombia. Critically endangered species. Endemic to Colombia.

Luiz Claudio Marigo / Cotton-top Tamarin / Cotton-headed Tamarin (Saguinus oedipus) on branch. Tropical Rainforest of Tayrona Natural National Park, municipality of Santa Marta, Magdalena Department, Colombia.