Friday, September 22, 2017

Jerry Coyne Reviews Cordelia Fine's Testosterone Rex

Pretty much what you'd expect, leaving the deets to Stuart Ritchie's review.
Before I started TR and then while I was reading it, I wrote two posts (here and here) about Fine’s claim that there’s no evolved differences in male and female behavior. I also criticized her completely muddled and erroneous claim (based on bogus statistics) that sexual selection doesn’t work because the “Bateman experiment”—showing a greater variance in reproductive success among male than among female fruit flies—was wrong. Well, it wasn’t wrong, it was inconclusive, and later work, as Ritchie notes, has supported the sex difference in reproductive-success-variance that’s a crucial assumption of sexual selection. Bateman’s result was just a one-off that tells us nothing. Sexual selection is alive and well, and supported by tons of data. Nevertheless, Fine’s argument, which is really dumb if you know even a bit of biology and math, persuaded many people, including a Guardian reviewer, and Ritchie takes it apart in his review.
In that second link (which I missed earlier), Coyne quotes a review by the politically-motivated P.Z. Myers ("Myers has always rejected biology that is ideologically unpalatable to him"):
In a rare occurrence at his site, the commenters, usually a choir of osculatory praise, gave him pushback. In fact one,  “Charly”, did the math correctly and showed that males in relationships with multiple females (bigamous or polygamous) have the potential to have more offspring than do monogamous males, supporting the ideas that men are selected to compete for women. (Duh!) Charly ended his calculations with this statement: “But maybe my reasoning and math is wrong, I am sure someone will point flaws out.”

In the next comment, Myers admitted that Charly’s math was actually right—math that invalidates Fine’s argument—but then he said this:

And there we have it, ladies and gentlemen, brothers and sisters: an admission that the biology is right, at least in theory, but the person who did the calculations is immoral.
This is what we're up against. 

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