species and have only been known to tolerate some colobine species which do not compete with them for resources. Reproduction Female De Brazza's monkeys reach sexual maturity around 5 years of age, while males do not reach maturity until closer to 6 years of age. Most juveniles males will leave their natal group before they reach maturity. The breeding season lasts from February to March, but females can also go into estrous during times of high food availability. Gestation lasts between 5 to 6 months, and an infant stays close to its mother for the first year of its life at which point it is weaned. Females usually have one infant at a time, though twins have been born on rare occasions, with a year long inter-birth interval. Conservation The De Brazza's monkey is listed as least concern by the IUCN Red List. The main threats to DeBrazza's monkeys are deforestation due to logging and agriculture, and bushmeat hunting. There are several captive population housed in zoos across Europe and North America. The Association of Zoos and Aquariums (AZA) manages captive population under a species survival plan. This is unique because the species is not listed as vulnerable or endangered, but has been sponsored by the AZA to proactively prevent need for reactive conservation in the future. More data is needed to fully assess the conservation needs of this species. References External links BBC Science and Nature De Brazza's monkey Mammals of Angola Mammals of Cameroon Mammals of the Central African Republic Mammals of the Republic of the Congo Mammals of the Democratic Republic of the Congo Mammals of Equatorial Guinea Mammals of Ethiopia Mammals of Gabon Mammals of Kenya Mammals of South Sudan Mammals of Uganda Fauna of Central Africa De Brazza's monkey Taxa named by Hermann Schlegel