De Brazza's monkey

Cercopithecus neglectus

De Brazza's monkeys live along rivers in forest habitats in Central Africa, from Cameroon to Ethiopia, and Kenya to Angola. They are primarily herbivores.

This monkey is named for Pierre Savorgnan de Brazza, an Italian explorer originally named Pietro Savorgnan di Brazza. He lived from 1852 to 1905 and founded a city that is named for him: Brazzaville, the capital of the Republic of the Congo.

De Brazza's monkey behavior and facts

  • De Brazza's monkeys forage in the early morning and evening; they hand-gather fruit, buds, young leaves, flowers and catch lizards.
  • They are arboreal, dwelling in the tree canopy, and prefer dense vegetation near rivers. They live in lowland and submontane tropical moist forest, swamp forest, semi-deciduous forest and Acacia forest.
  • Humans, other primates, African eagles and leopards are predators. De Brazza's monkeys freeze as a defense mechanism.
  • These monkeys are territorial and live in small groups. Daughters may stay with mothers their entire lives. Males leave when they are sexually mature.

From birth to death

  • Breeding interval: slow
  • Gestation: 5 to 6 months
  • Female gives birth at night to 1 young; twins are rare.
  • Infants are furred, with their eyes open; they immediately cling to their mother's belly.
  • Sexual maturity: 5 to 6 years
  • Lifespan: unknown

Vital statistics

  • Length: 16 to 25 inches
  • Weight: males, 11.5 pounds; females 9.25 pounds

Status

  • CITES App II, 1975
  • Ethiopia protected from hunting/trapping
  • Threats: animal trade (African pet), habitat destruction, range fragmentation, cultivation, especially Ethiopia (coffee plantations)

De Brazza's monkeys, the Oregon Zoo and you

These monkeys live in the Africa Savanna exhibit, where they eat monkey chow, fruit and vegetables. They are common and widespread across their range, though hunting and habitat loss have caused declines in parts of their traditional habitat.

De Brazza's monkeys at the Oregon Zoo

Gus

Gus was a male De Brazza's monkey born at the Bronx Zoo in 2000, and came to the Oregon Zoo in 2008 based on a recommendation from the Association of Zoos and Aquariums' species survival plan for De Brazza's monkeys. He was a favorite among the zoo's primate and Africa keepers, many of whom had worked with him for five years...

Brooke

Brooke is a female De Brazza's monkey born in 1991. When Brooke was young, she assisted her mother in the care of her younger sibling. Brooke did well holding and caring for the baby – an experience that would prepare her to rear her own offspring. In Feb. 2013, she gave birth to Augustus. They live together in the zoo's Africa Savanna habitat...