During encounters with rival males, female 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 also have scent glands on the inside of their forearms, adjacent to a thorn-like spur, which they use to gouge, and simultaneously, scent-mark tree branches. They will also wipe their tails between their forearms and then engage in "stink fights" by waving their tail at their opponents. 
