The World's Smartest Mice
後來我用用"Humping" or "riding behavior"來查相關的研究，是有看到一篇
Activities associated with conflict behaviour in mice
The dominant mice spent significantly more time in social grooming, social sniffing, genital sniffing and food control than did the subordinate mice. Humping and tail lashing also were exhibited significantly more by the dominants. Significantly more tail lashing occurred in pair contacts when fighting, usually accompanied by attacks and chases, took place than when only attacks and chases occurred. Correlations between latency and time spent in conflict behavior and in social sniffing were significant.