Cercocebus – Capped mangabeys

A rare case of gender-equal society in the animal world

Since they are terrestrial primates, Cercocebus typically spend most of their time on the ground. They are active all day long. They forage and reside in huge, mixed-gender groups of 70–120 individuals. They create coalitions and establish linear dominance hierarchies within each group. Inside these hierarchies, higher-ranking females are often more centralized within groups and spend less time foraging than their lower-ranking counterparts.

Higher-ranked males will also be more centrally situated within the group and get better nutrition and rest.

They have a variety of predators; hence they have developed acoustically separate warning cries for each predator species. Other monkey species employ these signals to ward off prospective predators; they are not vocalized expressly in favor of relatives or cooperative partners.

These monkeys eat primarily plants (granivores, frugivores). They often eat fruits, nuts, and seeds, and they will add invertebrates to their diet as a supplement.