Ingo Arndt / Red bald headed uakari {Cacajao calvus ucayalii} Rio Yavari, Amazonia, Peru FOR SALE IN UK ONLY

Ingo Arndt / Red bald headed uakari {Cacajao calvus ucayalii} in tree, Rio Yavari, Amazonia, Peru

Ingo Arndt / Red bald headed uakari {Cacajao calvus ucayalii} leaping from tree canopy, Rio Yavari, Amazonia, Peru

Ingo Arndt / Close up of face of Red bald headed uakari {Cacajao calvus ucayalii} Rio Yavari, Amazonia, Peru FOR SALE IN UK ONLY

Roland Seitre / Bald head uakari monkey (Cacajao calvus rubicundus) captive, occurs in Amazonian Peru, and Brazil.

Christophe Courteau / Red Uakari Monkey {Cacajao rubicundus} jumping from branch to branch. Mamiraua Wildlife Reserve. Amazonia, Brazil

Juan Manuel Borrero / White bald-headed uakari (Cacajao calvus) head portrait. Amazon basin. Iquitos. Loreto. Peru, Captive

Mark Bowler / Peruvian red uakari monkey (Cacajao calvus ucayalii) eating aguaje palm fruits (Mauritia flexuosa) Yavari River, Peru, vulnerable species, wild

Mark Bowler / Peruvian red uakari monkey (Cacajao calvus ucayalii) feeding in rainforest on aguaje palm fruits (Mauritia flexuosa) Yavari River, Peru, wild, vulnerable species

Claus Meyer / Red Uakari (Cacajao rubicundus) male feeding on fruit, Amazon ecosystem, Brazil

Pete Oxford / Red uakari monkey in tree Amazon rainforest, Brazil, South America

Sylvain Cordier / Bald uakari (Cacajao calvus) Amazonas, Brazil.