Flannelly K, Lore R
Anim Behav. 1977 Aug;25(3):654-9. doi: 10.1016/0003-3472(77)90116-6.
The aggression of adult male Long-Evans rats (Rattus norvegicus), toward males of the same strain, was tested before and after a 1-week period of cohabitation with a pair of intact females, ovariectomized females, or intact males, comparable to the females in size. Only cohabitation with intact females increased the aggression of resident males against unfamiliary male intruders. Female enhancement of aggression does not appear to be caused by sexual frustration of males, or a function of dominance-subordinance relations, per se. Increased aggression may be mediated by elevated testosterone production associated with mating.
对成年雄性Long-Evans大鼠（褐家鼠）与体型相当的一对未阉割雌性、去卵巢雌性或未阉割雄性共同生活1周前后，测试其对同品系雄性的攻击性。只有与未阉割雌性共同生活增加了常住雄性对陌生雄性入侵者的攻击性。雌性对攻击性的增强作用似乎并非由雄性的性挫折或支配-从属关系本身所致。攻击性增加可能是由与交配相关的睾酮分泌增加介导的。
