Discrete hierarchical organization of social group sizes

  title={Discrete hierarchical organization of social group sizes},
  author={Wei‐Xing Zhou and Didier Sornette and Russell A. Hill and Robin I. M. Dunbar},
  journal={Proceedings of the Royal Society B: Biological Sciences},
  pages={439 - 444}
The ‘social brain hypothesis’ for the evolution of large brains in primates has led to evidence for the coevolution of neocortical size and social group sizes, suggesting that there is a cognitive constraint on group size that depends, in some way, on the volume of neural material available for processing and synthesizing information on social relationships. More recently, work on both human and non–human primates has suggested that social groups are often hierarchically structured. We combine… 

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