Figure 3

Analysis of maternal and non-maternal behaviors in WT and CRFR1-/- mice. CRFR1-/- mice spent a significantly lower proportion of time licking and grooming offspring postpartum Day 2 relative to WT mice, but differences between groups on Day 3 did not reach significance (A). Self grooming behavior did not differ between genotype on either test day (B). CRFR1-/- mice spent a higher proportion of time nest building than WT mice and these differences reached significance on postpartum Day 3 (C). CRFR1-/- mice spent a higher proportion of time eating and drinking than WT mice and these differences reached significance on postpartum Day 3 (D). Bars represent means ± SE. White bars indicate WT mice and black bars indicate CRFR1-/- mice. * = p < 0.05; ANOVA on ranks for (A), (C), and (D).