Mandibular bone area (mm2) in midsagittal section as a fraction of total subperiosteal area in samples of adult great apes and humans ( males and females for each taxon). 25th and 75th percentiles (box), median (line), 10th and 90th percentiles (whiskers) and outliers are shown. For this index, ANOVA is significant (), and unplanned comparisons show no difference among the apes while humans differ from each ape species at . This finding of significantly greater bone packing in humans is most pronounced in the anterior corpus [17].
