Claim: During encounters with rival males, male ring-tailed lemurs, which have scent glands on their wrists, chests, and in the genital area, may perform ritualized aggression (when animals use a range of behaviours as posture or warning but without engaging in actual aggression) by having a "stink fight".
Evidence: Male ring-tailed lemurs have scent glands on their wrists, chests, and in the genital area. During encounters with rival males they may perform ritualized aggression by having a "stink fight". Ritualized aggression is when animals use a range of behaviours as posture or warning but without engaging in actual aggression, which is expensive in terms of energy and the risk of injury.