Patterns of Primate Behavior

activity adult females adult males Africa aggression animal's animals anthropoids apes appear arboreal Barro Colorado Island behavior birth brachiation cage central characteristics chimpanzees color common baboon communication copulation cycle disease displays dominance status estrus feeding field study foraging forest frequently fruit geladas gibbons glands Gombe gorilla grooming Group composition habitat hamadryas hamadryas baboons Harlows hectares hierarchy home range hormones howler monkeys human important infant infection interactions Japanese macaques juveniles langurs leader male lemurs lifeways male's mating season meters months mother move movements nonhuman primates observer occur offspring Old World olfactory one-male ordinary males Papio particularly patas monkey pattern percent plants play population predation primates primatologists prosimians records relationships reproductive response rhesus monkeys role savanna sexual dimorphism signals sleeping social organization species spider monkeys Struhsaker study area subgroups subleaders Tikal tion trees troop vervet monkeys vervets vocalizations Washoe World monkeys