https://blog.wongcw.com/2021/05/13/%e7%a0%94%e7%a9%b6%e7%99%bc%e7%8f%be%e9%9b%8c%e7%8c%b4%e5%88%a9%e7%94%a8%e9%9b%84%e7%8c%b4%e4%bd%9c%e7%82%ba%e5%83%b1%e5%82%ad%e5%85%b5%e4%be%86%e6%8a%b5%e7%a6%a6%e6%8d%95%e9%a3%9f/
研究發現雌猴利用雄猴作為“僱傭兵”來抵禦捕食者