These monkeys are mostly known for their bright red faces,

which are an indicator of good health.

Sick monkeys develop pale faces.

Unlike most primates, bald uakaris have very short tails

and long coats.

The uakari is an arboreal primate,

which means they live in the treetops,

mostly because of forest flooding in the rainy season.

During the dry season,

they return to the ground to look for seeds.

The bald uakari are native to the western Amazon

of Brazil and Peru and are considered a vulnerable species.

Female uakaris can only give birth

to a single infant every two years,

so the population can't grow rapidly.

These primates are threatened primarily by hunting

and destruction of their habitat, mostly by deforestation.

This is the bald uakari monkey.