Not By Genes Alone
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Richerson, Peter J. & Boyd, Richard. 2005. Not By Genes Alone: How Culture Transformed Human Evolution. Chicago, IL: University of Chicago Press. ISBN-13 9780226712123.

The framework of cultural evolution (along with its potential for shaping biological traits) is addressed extensively in Richerson and Boyd's Not By Genes Alone. They sketch how behavior can be transmitted culturally, highlighting the ability to mimic, or copy, others, in lieu of more lengthy and costly learning on one's own. That strategy can also lead to some social pathologies, such as prejudicial stereotyping and unproductive bandwagon effects. The authors also appeal broadly (and often uncritically) to diffuse group selection, emphasizing in-group cohesion and out-group conflict in shaping behavior.

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