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Excerpts from A Billion Years of Sex Differences
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Keeping It Casual, Part 1
Sex differences in interest in casual sex
3 hrs ago
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Steve Stewart-Williams
7
1
The Evolution of Mutual Mate Choice
Why humans are more like the average bird than the average mammal
Apr 4
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Steve Stewart-Williams
35
4
8
Sizing Up the Sexes
Why females are larger in most species, but men are larger in ours
Mar 25
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Steve Stewart-Williams
27
6
Three More Lines of Evidence for Innate Sex Differences
An excerpt from my forthcoming book, A Billion Years of Sex Differences
Mar 18
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Steve Stewart-Williams
27
10
Three Lines of Evidence for Innate Sex Differences
An excerpt from my forthcoming book, A Billion Years of Sex Differences
Mar 11
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Steve Stewart-Williams
23
10
Four Cracks in the Nurture Edifice
Why sociocultural explanations for sex differences fall short
Feb 18
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Steve Stewart-Williams
35
2
12
Five Positions on the Nature-Nurture Issue
An excerpt from my forthcoming book, A Billion Years of Sex Differences
Feb 11
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Steve Stewart-Williams
24
11
5
The Greater Male Variability Hypothesis
How sex differences can be large even when they’re small, Part 2
Jan 28
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Steve Stewart-Williams
37
3
5
Sex Differences Are Often Larger at the Extremes
How sex differences can be large even when they’re small, Part 1
Jan 21
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Steve Stewart-Williams
34
10
Why I'm Not a Fan of Gender
The seventh excerpt from my forthcoming book, A Billion Years of Sex Differences
Jan 14
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Steve Stewart-Williams
40
10
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The Case for the Sex Binary
The sixth excerpt from my forthcoming book, A Billion Years of Sex Differences
Jan 3
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Steve Stewart-Williams
38
8
What Should We Do About Sex Differences?
The fifth excerpt from my forthcoming book, A Billion Years of Sex Differences
Dec 3, 2025
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Steve Stewart-Williams
20
13
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