vervet monkey closeup portrait from tanzania, africa

animal mammal wildlife primate monkey ape macaque zoo gorilla chimpanzee squirrel rodent whiskers branch vervet closeup portait tanznia africa portrait tanzania tree monkey closeup portrait vervet monkeys adult black face tanzania east africa wild wildlife animal mammal smart intelligient chordata primates old world native herbivorous herbivore social groups greyish gray grey adaptable cute pests research concern cercopithecidae chlorocebus black-faced silvery-gray arboreal trees langur fur furry safari mischievous chlorocebus pygerythrus jungle savanna savannah african vertical