Like HowStuffWorks on Facebook!

Bald Uakari

        Animals | Primates

Bald Uakari
Bald Uakari
Wolfgang Bayer/DCI

Little is known about the bald uakari. A diurnal species, it is almost totally arboreal and spends much of its time high in the rain-forest canopy searching for fruit, insects, and small vertebrates to eat.

It rarely makes a noise and thus can move through the forest without being detected, even when traveling in groups.

The groups are a mix of fifteen to thirty males, females, and their young.

There are two species of uakari, Cacajao calvus and C. melanocephalus, both of which possess a wrinkled red face and a bald head.

C. calvus has four subspecies; the one shown here is called the red uakari because of its reddish brown to chestnut coat.

All uakari are threatened because of logging, mining, and agriculture in their habitat, activities that have also provided access roads for hunters who kill them for food and sell them young as pets.

Animal Facts

Name: Bald Uakari (Cacajao calvus)

Family: Cebidae (New World Monkeys)

Range: Upper Amazon basin

Habitat: Flooded forests, river edges, and swamps

Diet: Seeds, fruits, flowers, and small animals

Head and Body Length: 20 to 22 inches (51 to 57 cm)

Tail Length: about 6 inches (15.5 cm)

Weight: 7 to 11 pounds (3 to 5 kg)

Life Cycle: Unknown in wild

Description: Long, bright orange fur; hairless face and forehead; pink to red skin color; short, bushy tail

Conservation Status: Vulnerable

Major Threat(s): Hunting

What Can I Do?: Visit the International Primate Protection League and the Rainforest Conservation Fund for information on how you can help.