Sex at Dawn: How We Mate, Why We Stray, and What It Means for Modern Relationships (2010) details how the courtship habits of humanity's closest primate relatives, the lives of early humans, and the sexual rituals of nomadic tribes all shed light on the true urges underlying human sexuality. Many anthropologists assert that monogamy comes naturally to humans; to support their thesis, they point toward relationship customs that have existed in various civilizations for centuries....
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