You’ll learn
- Why passion can fade as love deepens
- What sperm competition suggests
- Why our picture of prehistory looks suspiciously modern
- How some societies share fatherhood
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first KEY POINT
Two people pair up, sexual exclusivity follows, jealousy protects the bond, and desire is supposed to stay pointed at one person forever. The pattern feels self-evident, almost biological. But some of those assumptions are much younger than they look. Our closest primate relatives follow radically different sexual rules. Some cultures recognize more than one father for a child. And property and inheritance may have reshaped relationships more than we realize.
Sex at Dawn follows these clues into a past where sex, family, and partnership may have worked very differently and asks how much of that past still lives in us.
second KEY POINT
We know surprisingly little about how prehistoric humans organized their everyday lives. There are tools and campsites, but these tell us much less about relationships, cooperation, or sex. And where the evidence runs out, interpretation fills the gaps.

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