Fig. 6
From: Characterization of juvenile play in rats: importance of sex of self and sex of partner
Males play longer than females. a The time spent engaged in play was greatest for males paired with other males and least for females paired with other females, with mixed-sex pairs demonstrating intermediate levels (ANOVA: ***p < 0.001). b Separation of the time spent engaged in play into individual days did not reveal a significant interaction between age and pair type (two-way repeated measures ANOVA). c Comparison of play on PN32 (familiar partner) and PN33 (novel partner) did not reveal an interaction between pair type and partner familiarity (two-way repeated measures ANOVA: ns = not significant)