The Nature-Nurture-Nietzsche Newsletter

The Nature-Nurture-Nietzsche Newsletter

Mate Choice as Selective Breeding

How men and women bred each other for the traits they most wanted in a mate

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Steve Stewart-Williams
Jun 16, 2026
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This post is an excerpt from my new book A Billion Years of Sex Differences. You can access the full collection here, or pick up a copy of the book here.

In this installment, we’ll see…

  • Why mate preferences aren’t just products of evolution but causes of evolution as well

  • Why the widespread idea that women are the sexual selectors in our species is only half true

  • How men’s and women’s desires helped shape each other’s evolution

  • How something as intangible as a preference can sculpt physical anatomy

  • Why, when it comes to physical attractiveness, females in our species have the larger “peacock’s tail” - a reversal of the usual pattern in nature

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