The red faced Uakari (Cacajao calvus) is one of the most endangered monkeys in the Amazon Rainforest. The name ‘Uakari’ stems from an extinct tribe that inhabited the Amazon Rainforest many centuries ago. Habitat destruction and hunting continue to threaten this monkey and their numbers are ever-decreasing. However, efforts to protect the Uakari are widespread, in fact the Tamshiyacu Tahuayo Reserve was established for this very purpose.