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Clarifying the time frame and units of selection in the cultural group selection hypothesis
1Centre for Social Learning and Cognitive Evolution,School of Psychology & Neuroscience,University of St. Andrews,St. Andrews KY16 9JP,United Kingdom.aw2@st-andrews.ac.ukwww.st-andrews.ac.uk/profile/aw2.
Unlabelled:
We raise and discuss two issues for clarification. First, over what timescale is cultural group selection proposed to have been active? Unprecedented cooperation is inferred to have arisen in hunter-gather life well before the recent period on which Richerson et al.
Focus:
Second, what is the unit of selection? Groups (of human individuals)? Or cultural entities along the lines of "meme-complexes"?
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