精子竞争是指同一女性产道中两个或两个以上男人的精子相互竞争卵子的过程。女性得到社会承认的性伙伴可能因精子竞争失败而损失惨重,因为女性私通可能引起男性投资于不携带自己基因的后代。过去研究表明进化而来的男性配偶监控策略可以防止女性不贞,减少精子竞争失败的危险。当前研究发现男性与配偶进行性行为后离别时间越久,男性就越采取出其不意地打电话、独占配偶时间、威胁对配偶感兴趣的男性等手段来监控配偶。 Sperm competition refers to the process of sperm competition between two or more men in the same female birth canal. Female sexually recognized partners may suffer heavy losses as a result of unsuccessful competition for sperm, which may cause men to invest in offspring that do not carry their own genes. Past research shows that evolving male spouse monitoring strategies can prevent female infidelity and reduce the risk of failure of sperm competition. The current study found that men and spouses sex after the departure time, the more men take the unexpected call, the exclusive spouse of time, threats to their spouses and other means of men to monitor the spouse.