Fig. 4: Proportion of branchwise brain and body size increases.
From: Co-evolutionary dynamics of mammalian brain and body size
The proportion of branches where brain mass increased compared with the proportion of branches where body mass increased is plotted per taxonomic group. The fitted line and 95% prediction intervals (shaded) highlight primates and carnivores as outliers. A representative silhouette for each order (see Fig. 1) is shown and coloured according to the median amount of total relative change in brain size for that order (estimated difference in the standardized magnitude of change in brain mass compared to body mass, Zbrain−Zbody).
