Figure 2.

Multivarite evolutionary allometry. (a) Scatterplot of the multivariate regression between brain endocast shape variables and the logarithm of endocast size (lnCS). Warped meshes refer to brain shape at the lnCS extremes. The heat map represents the magnitude of shape changes associated with maximum lnCS. (b) The plot represents the diverging allometric trajectories for Hominoidea (blue, upper line) and Papionini (red, lower line). The heat maps representing the brain shape deformation for each group at its respective maximum size are superimposed on the plot. (Online version in colour.)