Early life experience alters behavioral responses to maternal and predator odor at PN14 and PN23 as assessed by mean (±SEM) number of choices to male and maternal odor in a Y-maze (A, B; n = 7–8/group), mean (±SEM) latency to nipple attach (C, D; n = 8–10/group), and mean (±SEM) activity levels in response to male odor presentations (E, F; n = 8/group). Groups with the same alphabetic label are not significantly different from each other based on post hoc tests (p < 0.05).