Figure 3

Changes in selected metabolites in grey seal pup serum with time after birth. Box and whisker settings - line in box, median; square in box, mean; box boundaries, standard error; whisker bars, range. The scatter points refer to values for individual pups. The days after birth labelled 18 are a combination of samples taken at 17, 18, or 19 days. Lactations periods lasted 18 to 21 days. For all the metabolites significant differences exist between the population means by ANOVA with Tukey’s test at the 0.05 level or below. Supplementary Table S1 provides statistical analysis of where significant differences were found between the days for these and other metabolites.