Fig. 1. (A) Plasma glucose levels in adult female elephant seals from time 0 to 180 min post glucose injection. Samples at 180 min post-injection are significantly elevated; early lactation: paired t=8.93; P<0.0001; late lactation: paired t=17.57, P<0.0001; molted females: paired t=5.07, P=0.002. (B) Serum insulin values of adult elephant seals in response to 150 g exogenous glucose from time 0 to 180 min post-injection in early and late lactation and post-molt. Closed circles, early in lactation (5 days postpartum); open circles, late in lactation (22 days postpartum); triangles, fully molted females, late in the molt fast (>20 days fasting). See text for RM ANOVA statistics. Error bars are ± s.e.m.