Red Uakari (Brazil-Peru border forests) by Helmut Diller - Uakari is the common name for the New World monkeys of the genus Cacajao. The common name is believed to come from the indigenous term for "Dutchmen"; their red faces apparently reminded the locals of sun-burned Europeans. Cacajao is also believed to be an indigenous name, of unknown meaning now, as the tribe and language is extinct. 固opFoto