Bonnet macaque females 3.5 to 4.5 kg. Captive monkey can live up to 35 years. The bonnet macaque feeds on fruits, nuts, seeds, flowers, invertebrates, and cereals. In southern India, this macaque exists as commensal to humans, feeding on food given by humans and raiding crops and houses. Two subspecies of bonnet macaques have been identified: "M. r. radiata" and "M. r. diluta". The bonnet macaque has a very wide range of gestures and behaviors, which can be easily differentiated. Lip smacking is one of the most common affiliative behaviors, where one individual may open and close its mouth in rapid succession,
Barbary macaque males who have helped them in the past, this is not as important as relatedness in determining coalitions. Males avoid conflicting with higher ranking males and will more frequently form coalitions with the higher ranking male in a conflict. Close grouping of males occur when infant Barbary macaques are present. Interactions between males are commonly initiated when a male presents an infant macaque to an adult male who is not caring for an infant, or when an unattached male approaches males who are caring for infants. This behaviour leads to a type of social buffering, which reduces the number of