Threat and aggression, the most common method being the eyelid display, maintain rank order. Here the eyelids are turned up and accompanied by a stare, which functions as a threat. Food Vervets are predominantly vegetarians, consuming most available fruits, seeds, seedpods, leaves, buds, sap, flowers and various herbs and grasses. They will also eat invertebrates and occasionally small vertebrates. Reproduction Reproduction is seasonal with mating taking place in the dry season and births occurring between October and January.
Females have one young, with twins being a rarity.
The young weigh about 350 grams at birth.