During encounters with rival females, male ring-tailed lemurs, which have scent glands on their wrists, chests, and in the genital area, may perform ritualized aggression by having a "stink fight".
Male ring-tailed lemurs have scent glands on their wrists, chests, and in the genital area. During encounters with rival males they may perform ritualised aggression by having a "stink fight". 
