Figure 1B in Burkart and van Schaik's (Reference Burkart and van Schaik2016) commentary on the target article by Richerson et al. (Reference Richerson, Baldini, Bell, Demps, Frost, Hillis, Mathew, Newton, Naar, Newson, Ross, Smaldino, Waring and Zefferman2016) is a duplicate of Figure 1A. The correct Figures 1A and 1B appear below. The commentary appears on pages 22 and 23 of the treatment.
Figure 1. The relationship between allomaternal care and (A) proactive prosociality and (B) social tolerance. Humans fit the general primate trend and do not represent an outlier.
