herself between mating pair. Dominant adult male bonobos interfere in mating of adult females, which Kano called Sexual interference. See video. interfere play Third party prevents ongoing social play by rushing at player, sometimes stopping play. Mother may prohibit rough alloparent from continuing play with her infant. Intruder may solicit play in various ways, take over play partner and engage in social play. 3. See video. See also video kick. inter-group behavior Behavior related to presence or absence of neighboring unit groups. Generally, antagonistic. Groups usually avoid one another, but larger party of unit group occasionally intrudes territory of another group and kills some of them, in particular infants. However, young females in estrus are allowed to enter neighboring group. See immigrate, intrude, kill adult male, kill infant,