Diana monkey in exhibit

Diana Monkey

Scientific Name

Cercopithecus diana






Western Africa


Forest trees

Estimated Wild Population

Less than 97,000
Diana monkey in exhibit
IUCN Conservation Status: Endangered IUCN Conservation Status: Endangered

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Physical Description

Diana monkeys are medium-sized primates that can reach up to two feet in height—without including their 30-inch tail. They have a white chest and brow, along with a black body and brown markings on their back and legs. Diana monkeys feed on fruit, flowers, and insects. They are vulnerable to a number of predators, including leopards, snakes, and birds of prey. Females give birth to one or two offspring at a time. They are dependent on their parents for six months and mature after about three years, at which point males leave the group.

Interesting Fact 1

Diana monkeys use a variety of facial expressions and calls to communicate within their group. They even have distinct alarm calls to signal different predators, making specific sounds when they spot an eagle or a leopard

Interesting Fact 2

These primates were named for their crescent-shaped brow, which resembles the brow of Diana, a Roman deity of wildlife and woodlands.

Interesting Fact 3

Their tail is often curled like a question mark.

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Species Survival Plan®

We cooperate with other members of the Association of Zoos and Aquariums to manage the zoo population of this species through a Species Survival Plan®.

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Commitment to Care

Lincoln Park Zoo prioritizes individual well-being over everything else. Guided by scientific research, staff and volunteers work to provide the best welfare outcomes for each individual in the zoo’s care.

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Wish List

The Wish List is full of one-of-a-kind items for the zoo’s animals, including nutritious snacks and enrichment items to keep them active and healthy. 

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Wildlife face many daunting challenges—some global, like planet-wide climate change, and some that affect individuals, like an animal ingesting plastic—but now is not the time to despair. None of these problems are too big for us to come together and solve.

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