Formosan rock monkeys show a high degree of group solidarity, breed prolifically, and are intelligent and adaptable. These are often cited as reasons why monkey populations in national parks and wildlife refuges have recovered since the Wildlife Conservation Law was implemented.
獼猴團結力量大，繁殖率高，加上聰明、適應力強，一般認為，這是台灣實施野生動物保育法後，國家公園與保護區獼猴數量恢復的原因。