Old World Monkeys: Cercopithecidae - Conservation Status

The World Conservation Union (IUCN) lists five species as Critically Endangered, facing an extremely high risk of extinction, due to hunting, as well as habitat loss and degradation from agriculture, logging, and other human activities. These are the eastern red colobus, the Tonkin snub-nosed monkey, the Delacour langur, the white-headed langur, and the Mentawai macaque. Twenty-two species are classified as Endangered, facing a very high risk of extinction in the wild; seventeen are Vulnerable, facing a high risk of extinction in the wild; and twenty are Near Threatened, not currently threatened, but could become so.