It has black hair covering its body, except for a reddish abdomen, tail, and upper limbs, and a bald face.

It has highly specialised teeth which allow it to eat seeds and fruits with hard shells.

[3] However, in 2008 a new black uakari was discovered and the species group was reassessed using morphological and molecular analyses.

[3] It is native to north-western Brazil, south-eastern Colombia and south-western Venezuela, living in the Amazon Rainforest, especially in the seasonally flooded forests called igapos.

[8] Uakaris have been seen raiding wasp nests for larvae and even eating the eggs of river turtles.

[9] After birth, the infants follow the mother for a year and a half, being carried on her back or front side.