I continue to be amazed at how much dust is stirred up by simply asserting the biological observation that, in animals and vacular plants, there are but two sexes, and those sexes are defined by the reproductive equipment they have. Males are “designed” (I’m speaking teleologically: “evolved” is what I mean) to make small, mobile gametes, and females to make big immobile ones. For decades this has been uncontroversial: A truth universally acknowledged, to paraphrase Jane Austen.
Now, however, for reasons known best to themselves, a small but vocal group of ideologues is denying the sex binary. In my coauthored paper coming out in late June, we hazard some guesses, but those of you following the controversy probably realize that it involves trying to impose one’s ideological views onto nature.
Here’s the kind of stuff that comes out of the woodwork (tweet found by reader Mike and noted in the comments below). It’s an object lesson about how to smear those who advance a scientific fact that you don’t like. (I’ve archived the tweet with a screenshot, but you can see the original by clicking on it).
This doesn’t work so easily with the sex binary, as even nonscientists can observe it with their own eyes. The result is that deniers of that binary, such as Agustín Fuentes and Laura Helmuth (editor of Scientific American who’s published several pieces denying a sex binary), face considerable pushback from both scientists—who work with male and female organisms—and “regular” people, who have eyes to see and neurons to analyze.
You might look at the comments (or “ratio-ing”) of these tweets by both Fuentes and Helmuthy (click to see original tweets and the thread of comments). You’ll see that the vast majority of comments on both tweets are critical. That’s not because of our own incisive analysis, but because Fuentes’s arguments (and Helmuth’s desperate attempts to defend them and stave off the decline of Scientific American) are so transparently weak—and ideologically motivated).
I enjoy a good dust-up once in a while, and this is one of them. Even the Daily Mail, which wrote an article about the controversy and about Sci Am, is pro-binary, though their article is not written at all well and seems to consist of fragments from interviews. Click below to read it.
They interviewed me, Fuentes, Helmuth, and Carole Hooven, and I won’t summarize the text, which, like the article itself, is a bit disjointed. (The writer was clearly not acquainted with evolutionary biology or the biology of sex.) Let me just say three things.
First, I did not say THIS:
Dr Jerry Coyne, a biologist at the University of Chicago, told DailyMail.com that the magazine is ‘forcing a progressive lefty agenda’ onto readers just wanting to learn about science. [Dr Fuentes] is imposing his ideology on nature,’ Dr Coyne said.
I would have said “Leftist”, though I stand by my claim that yes, Sci Am does have a political agenda. “Lefty” is a term I reserve for left-handed baseball pitchers. It’s probably a bad transcription from our recorded interview, and may be due to my voice, which was horse from a bad colt.
Second, there are pro-binary quotes from Carole Hooven and Colin Wright (whose writings were excerpted). Here’s how Carole responded to Fuentes’s (and Helmuth’s) claim that we biologist think that sex-related characters (beyond gametes and their developmental origin) and behaviors are also binary—an position that none of us have taken because we’re not stupid.
Dr Hooven, said Dr Fuentes is misrepresenting sex and the traits an animal has.
‘No serious scientist would argue that traits are binary; it is sex that is binary,’ she explained.
‘Sex differences in hormones, strength, size, etc. are not the same as sex, but are strongly associated with it, just as an interest in construction equipment or dolls are traits associated with, but not the same as being a boy or girl.
‘In mammals, there are two sexes and two only. One can change their sex-related characteristics like hormones, mode of dress, muscle mass, even voice, but one cannot change sex.
‘The point is, biologists and others understand that while male and female are binary sex categories based on gamete size, and bodies and behavior of boys and girls, men and women are extremely diverse, there are some circumstances in which sex matters.’
Fuentes has a lame reply:
Dr Fuentes disagrees with the assessment from the biologists.
‘There are sexes and differences between them matter. That is not in dispute. But the overlaps between sexes also matter and are sufficient that the frame of a “sex binary” is misleading and inhibits better research and analyses,’ he said.
How can he possibly disagree with what Hooven said, which happens to be true?
Third, I found this the most intriguing part of the article, and hilarious in its arrant fibbing in the part I’ve bolded.
‘Scientific American publishes fascinating articles about the latest scientific research, and often this work is relevant to important and timely issues,’ Laura Helmuth, editor-and-chief of the journal, told DailyMail.com in response.
‘We hope the articles we share, many of which are written by leading experts, help readers understand our world. That is my only agenda.’
Seriously? That is her only agenda? That’s simply not true: a major part of the magazine’s effort is devoted to propping up, using scientific articles and op-eds, Helmuth’s progressive authoritarianism (see my collection of posts about this bias here). If she were interested in truth, why would she flatly reject my offer to write an op-ed about the bad effects of ideology on science? (Well, that op-ed has morphed into a long article that will appear in about 6 weeks.)
Finally, to return to a sensible outlook, have a look at this piece by Stephen Knight (also known as “Godless Spellchecker”) at Spiked (click to read):
Just two excerpts here:
A dangerous strain of utopian thinking has taken hold of the ‘progressive’ left. Many now share the delusion that if we pretend certain falsehoods are true, then various forms of oppression and bigotry will magically disappear. Worse still, the proponents of these falsehoods demand their unequivocal affirmation from the rest of us.
Today’s leftists rightly insist on the importance of scientific truth when it comes to questions like climate change, vaccine safety and evolution. But they will discard scientific facts the moment they become inconvenient to their own worldview. Nowhere is this hypocrisy more pronounced than on the issue of gender, where transgender ideology has almost entirely supplanted scientific truth among the left. More alarming still is the fact that many scientists and scientific institutions, which really should know better, are colluding in this deception.
The latest scientific institution to promote gender pseudoscience is the once-venerable Scientific American magazine, which this week published an article headlined ‘Here’s why human sex is not binary’.
Make no mistake, sex in human beings really is binary and immutable. There are few things more emphatically true in our scientific understanding of the world than the human sex binary.
. . .After some silly and irrelevant trivia about the biology of lizards and fish (humans are neither fish nor lizards), the Scientific American article concludes by claiming that anyone who upholds the human sex binary is ‘trying to restrict who counts as a full human in society’. This single claim inadvertently reveals a great deal about what is wrong with the trans movement. Unable to refute the truth of the human sex binary, gender ideologues resort to demonising those who notice it as having ulterior, sinister motives.
This isn’t the first time Scientific American has lent its (now waning) credibility to gender nonsense. Back in 2018, it published an article titled ‘Sex redefined: the idea of two sexes is overly simplistic’. To this day, this piece is gleefully shared around by gender activists, emboldened by this apparent vindication of their ideology from a credible, scientific publication. However, the author of the piece has since clarified that reality actually is as simplistic as humans having only ‘two sexes’.
Here’s that clarification by Claire Ainsworth:
No, not at all. Two sexes, with a continuum of variation in anatomy/physiology.
— Claire Ainsworth (@ClaireAinsworth) July 21, 2017
And yes, Ainsworth is right, but I add the caveat that for many traits, like height and weight, males and females may lie on a continuous distribution, but the distribution is also bimodal because of sexual dimorphism. Sadly, Alice Dreger, whose book Galileo’s Middle Finger was great, rejects even the concept of sexual dimorphism in humans (see bottom of tweet; nothing is “potentially sensitive” there.
Much as I admire Alice Dreger, she's just dead wrong in her claim below, which refers to humans. OF COURSE we are sexually dimorphic. (She's responded to a now deleted tweet that's attached.) Why does the topic of human sex inspire so many misguided assertions like this? https://t.co/1M6tTYMvC9 pic.twitter.com/DK5nJaVktO
— Jerry Coyne (@Evolutionistrue) May 3, 2023
And, to end, Knight quotes the wise and ever-snarky Emma Hilton:
Dr Emma Hilton is a developmental biologist at the University of Manchester and a co-founder of the women’s rights organisation, Sex Matters. When I asked her what compels otherwise sensible people to make anti-scientific claims about human sex, she said: ‘Charitably, if you remove the ability to classify (by arguing classifications are arbitrary, meaningless, etc), you remove the ability to discriminate (or at least stigmatise). So, for some, “sex blindness” is a genuine strategy for social change. But it is a stupid one.’
That last five-word sentence made me laugh out loud. Big fun!














