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Comment
. 2012 Apr;35(2):82.
doi: 10.1017/S0140525X11001373. Epub 2012 Jan 31.

In-group loyalty or out-group avoidance? Isolating the links between pathogens and in-group assortative sociality

Elizabeth Cashdan  1
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In-group loyalty or out-group avoidance? Isolating the links between pathogens and in-group assortative sociality

Elizabeth Cashdan. Behav Brain Sci. 2012 Apr.

Abstract

The target article gives two explanations for the correlation between pathogens, family ties, and religiosity: one highlights the benefits of xenophobic attitudes for reducing pathogen exposure, the other highlights the benefits of ethnic loyalty for mitigating the costs when a person falls ill. Preliminary data from traditional societies provide some support for the former explanation but not the latter.

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