Published online by Cambridge University Press: 31 January 2012
Fincher & Thornhill's (F&T's) central hypothesis is that strong in-group norms were formed in part to foster parochial social alliances so as to enable cultural groups to adaptively respond to parasite stress. Applied to ancestral hominid environments, the story fits with evolutionary theory and the fragmentary data available on early hominid social formations and their geographical distributions. Applied to modern social formations, however, the arguments and inferences from data are problematic.
Target article
Parasite stress is not so critical to the history of religions or major modern group formations
Related commentaries (1)
Parasite-stress promotes in-group assortative sociality: The cases of strong family ties and heightened religiosity