The composition of bands may change a number of times during the course of a day as individuals wander off and groups split or combine with other groups.

• 另一方 面，有些黑猩猩有自己喜欢的伙伴。一名研究人员发现四只雄性黑猩猩在 4 个月中常常共 同游荡，还有母亲们常与她们较年长的子女们在一起。杂在一起。