
Sex at Dawn
Christopher Ryan
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Dunbar's number and other evolutionary quirks
by R. Dunbar
Harvard University Press · 2010
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Published by Harvard University Press in 2010, How Many Friends Does One Person Need? – Dunbar′s Number and Other Evolutionary Quirks: Dunbar's number and other evolutionary quirks by R.
Topics covered include Social psychology, Evolution, Human behavior and Evolution (Biology).
About the author: R. I. M. Dunbar (born 1947).