Nature & Environment
Studying mammals: The social climbers
...axes. Note that there are no units on the x-axis because ratios are relative measures. [Figure 11] Figure 11: Dunbar, R. I. M. (1989) Neocortex size as a constraint on group size in primates, Journal of Human Evolution, vol. 20, pp. 478 and 484, copyright 1992, with permission from Elsevier © Figure 11: Dunbar, R. I. M. (1989) Neocortex size as a constraint on...