Sex-differences in the agonistic behavior of spiny-mice (Acomys cahirinus).

Observations of 8 groups each containing three adult spiny mice (Acomys cahirinus) revealed that instances of chasing and physical displacement were quite common, while fighting and biting were rarely observed. The relationships between the most frequent behavioral categories were presented in a correlation matrix. In a second study, females tested in their home cages were dominant over males. In the males' home cages, however, no differences in the frequency of female vs. male aggression were observed. More instances of aggression were observed in the cages of the females than in the cages of the males.