These mammals are more gregarious and noisy than other apes, and they frequently engage in rhythmic stamping, hand-clapping, and beating or kicking a hollow tree or the iron door of a cage. Chimpanzee communities are made up of 15 to 120 animals. Lacking definite leaders, the communities are split into numerous temporary subgroups that change in composition within a matter of hours or days. Aadults wander off continuously from these groups and join other groups for varying periods. Infants and juveniles make up close to one half of the total population.
Young chimps learn by watching others.
Mother chimps often develop lifelong relationships with their offspring and usually travel them. Although males rarely leave the community in which they were born, females migrate to new communities during their adolescent heat period. Males form a loose dominance hierarchy, although tension is commonly expressed in interactions when different parties meet. Males spend much time grooming each other. Chimpanzees live up to 3048 meters high in tropical, humid forests of deciduous woodland or mixed savanna.