
The newsletter of Professor Steve Stewart-Williams. Evolutionary psychology, sex differences, nature and nurture, science, philosophy, and more.
| Platform | Pricing | Freemium | Publishes | Daily | |
|---|---|---|---|---|---|
| Issues | 299 | Founded | 5 years ago | Last Issue | 7 days ago |
| Active | |||||

Same-sex sexual orientation is biological but largely non-genetic
Same-sex sexual orientation is a genuine evolutionary mystery. Traits that reduce reproduction are not supposed to persist - yet homosexuality does.
Black people and men get longer sentences; people who kill Black people or men get shorter ones
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People aren’t always great at figuring out what’s going on in others’ heads. Nowhere is this truer than in the realm of sex and love. Here are thre...
The evolution of sex differences in sexual psychology: It’s not (just) what you think
Why are men more interested than women in casual sex and sexual variety?
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Long before they can walk, talk, or tie their shoelaces, infants have a rudimentary sense of beauty. By four months of age, babies look longer at patte...
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The writers behind this newsletter.
Professor of Psychology and author of A Billion Years of Sex Differences (2026), The Ape That Understood the Universe (2018), and Darwin, God and the Meaning of Life (2010). Writing about psychology, evolution, science, and more.
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