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Last edited by MARC Bot
September 30, 2020 | History
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Christopher Ryan

We need a photo of Christopher Ryan

American writer

Born 1962

2 works Add another?

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  • Cover of: Sex at dawn: the prehistoric origins of modern sexuality

    First published in 2010 2 editions in 1 language — 1 previewable
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  • Cover of: Sex at Dawn: How We Mate, Why We Stray, and What It Means for Modern Relationships

    First published in 2011 1 edition
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We need a photo of Christopher Ryan

American writer

Born 1962
Subjects
Human evolution, Marriage, Primates, behavior, Sex customs, Social evolution, History, Monogamous relationships, Primates, Sex, Sexual behavior, Sexual behavior in animals

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September 30, 2020 Edited by MARC Bot add ids
November 24, 2009 Created by ImportBot new author