Our new book on ideological threats to science

July 25, 2025 • 8:15 am

By “our,” I mean a group of 39 essays (and more than 39 people) about how science is being corrupted by the Left.

Now I know what you’re gonna say: the 39 chapters in the book below (find it here on Amazon) deal exclusively with threats to science from the Left but, as we all know, at the moment the threats to science from the Right (aka, the Trump Administration) are far more serious. In the short run that may be the case, but in the long run, well, who knows, but the threats from the Left continue, and that’s for sure. So think of it as a bunch of scientists and other academics analyzing how our trade is being hurt by “progressives.” And, at the time we submitted our manuscripts to editor Lawrence Krauss (who added a nice introdution), Trump hadn’t yet started slicing federal grant money from “bad” universities (I see that Penn and Columbia have just caved).

Luana and I have reworked our Skeptical Inquirer piece, “The Ideological Subversion of Biology” for the book, but there are lots of new and exciting contributions, at least judging by the titles (I’ve been gone and haven’t read most of them).

One that I have read is the introductory piece by Richard Dawkins, a new 33=page essay called “Scientific truth stands above human feelings and politics.”  It’s really, really good. We have Alan “Hoaxer” Sokal writing on “How ideology threatens to corrupt science,” Sally Satel on “Social justice, MD: Medicine under threat,” Carole Hooven on “Why I left Harvard,” Alex Byrne and Moti Gorin on “A deafening silence: bioethics and gender-affirming health care,” Elizabeth Weiss on “Burying science under indigenous religion,” Nicholas Christakis on “Teaching inclusion in a divided world,” Steve Pinker on “A five-point plan to save universities from themselves,” and 31—count them, 31—other essays. If you want to see the state of the art in how progressives ruin science, this is your book. Buy it ($35 hardcover, $17 on Kindle) and curl up in bed with these essays and a glass of sherry.  But wait! There’s more! See below the picture.

The book comes out in only four days, so get yours now. I’m not saying this to sell books; I can’t even remember if we get any remuneration for our contributions, but I don’t care.

UPDATE: I’ve put screenshots of the Table of Contents below”

Krauss is also releasing daily podcasts in the same order as the book’s chapters (sadly, Luana and I didn’t record one).  Below is the first one (one hour) with Richard Dawkins discussing his chapter with Lawrence, and Niall Ferguson’s interview is also up (they may have skipped Alan Sokal as there are 20 podcasts from 31 essays). You can find all the podcasts here.

Although Dawkins is dismissed by a certain group of know-nothings as a “white old man” whose thoughts are irrelevant, his chapter (and the interview) show that he hasn’t missed a lick, even at 84. Would that I could be half that cogent at that age!

The table of contents:

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UPDATE: As a reader noted (and I predicted), the Great Benighted, which includes the Hateful “Friendly”  Atheist, has gone after the book before it was even issued.  I very strongly doubt that the HA even read the book before he went after it.  So, you know, ignorance.

Dawkins on the binary nature of sex, the kerFFRFle, and more

February 5, 2025 • 10:25 am

Lawrence Krauss has edited a volume of essays and articles by 39 scientists writing about current threats to science, including censorship, ideological corruption, and so on. It also includes a revision of my paper with Luana Maroja on the ideological subversion of biology. The volume will be out this year, and that’s all I can say about it except that Richard Dawkins has published part of his contribution on his Substack “The Poetry of Reality”. You can read this part for free by clicking on the headline below.  You can guess what the answer to his title question is, and it’s correct.

The essay begins by recounting what prompted its publication online: the kerFFRFLE with the Freedom from Religion Foundation (FFRF) that led them to cancel my article on their website Freethought Now! discussing the binary nature of sex, an article that took issue with another piece on that site by an FFRF employee maintaining that “A woman is whoever she says she is.” (The original article is still there; my own critique was removed by the FFRF but you can read it here, herehere or here).  This act of censorship—I wasn’t even informed about it in advance—led me to resign from the FFRF’s Honorary Board, followed by the resignations of Richard and Steve Pinker, and then the dissolving of the entire Honorary Board by the FFRF. Freethought Now indeed!

As Richard notes at the outset:

It makes me particularly sad that [Annie Laurie Gaylor and Dan Barker, co-Presidents of the FFRF] have chosen to stray so far from their stated mission of promoting freedom from religion and the separation of church and state. They seem to think that opposition to militant trans ideology is necessarily associate with the religious Right. That is false. If it were true, it would be an indictment of the rest of us for neglecting our duty to uphold scientific truth. In fact there is strong opposition from feminists concerned for the welfare of women and girls.1 Also from within the gay and especially lesbian communities2, giving the lie to the myth of  a monolithic “LGBT.” “LGB” represents a coherent constituency within which “T” is regarded by many as an interloper. Most relevant here, cogent opposition comes from biological science – and that, after all, was the whole point of Professor Coyne’s censored article.

FFRF does not lack support. Indeed, among the secular / atheist / agnostic / sceptical / humanist communities of America, the  Center for Inquiry (CFI), with which is incorporated the Richard Dawkins Foundation for Reason and Science (RDFRS), is now the only major organization still standing unequivocally for scientific truth.

This lamentable affair is what has provoked me into posting the following critique on my Substack. It is an abbreviated extract from my article called Scientific Truth Sands Above Human Feelings and Politics, commissioned by Lawrence Krauss for a multi-authored volume on The War on Science, to be published in 2025 by Posthill Press3.  The full article makes a comparison with the debauching of science by TD Lysenko in Soviet Russia in the 1940s..

He then gives a long and very clear explanation, in classic Dawkinsian prose, of why biologists say that sex is binary and how the binary-ness evolved.I’ll give three short extracts, but do read the whole thing (for me, at least, it’s a pleasure to read anything Dawkins writes, not just for clarity but as a model of popular scientific writing). Below you can read about as clear an explanation that a human can produce. Sadly, clarity and truth do not lead to enlightenment among a certain ideologically recalcitrant moiety of Anglophones.  The piece also has sections on “transracialism” and “the theology of woke.”

How can I be so sure that there are only two sexes. Isn’t it just a matter of opinion? Sir Ed Davey, leader of the British Liberal Democrat party, said that women “quite clearly” can have a penis. Words are our servants not our masters. One might say, “I define a woman as anybody who self-identifies as a woman, therefore a woman can have a penis.6” That is logically unassailable in the same way as, “I define “flat” to mean what you call “round”, therefore the world is flat.” I think it’s clear that if we all descended to that level of sophistry, rational discourse would soon dig itself into the desert sand. I shall make the case that redefinition of woman as capable of having a penis, if not downright perverse, is close to that extreme. I shall advocate instead what I shall call the Universal Biological Definition (UBD), based on gamete size. Biologists use the UBD as the only definition that applies all the way across the animal and plant kingdoms, and all the way through evolutionary history.

. . . It is no idle whim, no mere personal preference, that leads biologists to define the sexes by the UBD. It is rooted deep in evolutionary history. The instability of isogamy, leading to extreme anisogamy, is what brought males and females into the world in the first place. Anisogamy has dominated reproduction, mating systems, social systems, for probably two billion years. All other ways to define the sexes fall afoul of numerous exceptions. Sex chromosomes come and go through evolutionary time. Profligate gamete-spewing into the sea gives over to paired-off copulation and vice versa. Sex organs grow and shrink and grow again as the aeons go by, or as we jump from phylum to phylum across the animal kingdom. Sometimes one sex exclusively cares for the young, seldom the other, often both, often neither. Harem systems change places with faithful monogamy or rampant promiscuity. Psychological concomitants of sexuality change like the wind. Amid a rainbow of sexual habits, parental practices, and role reversals, the one thing that remains steadfastly constant is anisogamy. One sex produces gametes that are much smaller, and much more numerous, than the other. That is all ye know of sex differences and all ye need to know, as Keats might have only slightly exaggerated if he’d been an evolutionary biologist.

. . . . Relative gamete size is the only way in which the male / female distinction is defined universally across all animal phyla. All other ways to define maleness versus femaleness are bedevilled by numerous exceptions. Especially those based on sex chromosomes, where you can’t even speak of a rule, let alone exceptions to it. In mammals, sex is determined by the XX XY chromosome system, the male sex having unequal sex chromosomes. Birds and Lepidoptera have the same system, but in the opposite direction and therefore presumably evolved independently. It’s the females who have unequal chromosomes. How do we know? Couldn’t you define males as the sex with unequal chromosomes? Well you could, but then you’d to have to say it’s the male bird that lays the eggs, the females that fight over males, etc. You’d lose every one of the 14 explanations I discussed earlier. Far better to stick with the UBD and say birds use sex chromosomes to determine sex, but it evolved independently of the mammal system. Birds are descended from dinosaur reptiles, and most modern reptiles don’t have sex chromosomes at all. Reptiles often determine sex by incubation temperature. In some cases higher temperatures favour males, in other cases, females. In yet other reptiles, extremes of temperature, high or low, favour females, males developing at intermediate temperatures. Many snakes, some lizards and a few terrapins use sex chromosomes, but they vary which sex has unequal sex chromosomes. Amidst all this variation, the only reliable discriminator is gamete size.

The way the sexes are defined (the UBD, universal and without exception) is, therefore, separate from the way an individual’s sex is determined during development (variable and far from universal). How we in practice recognize the sex of an individual is yet a third question, distinct from the other two. In humans, one look at a newborn baby is nearly always enough to clinch it. Even if it occasionally isn’t, the UBD remains unshaken.

And that is all ye need to know. You’ll have to wait for Richard’s full article, which I’ve read as I contributed to the book, as it has a nice section on censorship in biology as promoted by Lysenko and Stalin.

I still like my list of questions to ask people who claim that sex in humans (or other animals) is not binary but a spectrum. (The proportion of individuals who are exceptions to the gametic definition given above is minuscule, ranging from 1/5600 to 1/20,000):

  1. How many sexes are there in nonhuman animals likes cats, horses, hyenas, ducks, or sharks?
  2. If “two,” Is there a universal way to tell them apart? (the answer, of course, is “two” and “gamete type”)
  3. Now how many sexes are there in humans?
  4. If answer to #3 differs from that to question #1, Why is that the case, how many sexes are there in humans, then, and then how do you tell these more-than-two sexes apart?

Good luck getting an extreme gender ideologue to answer these questions!

The Atlantic unfairly disses Dawkins

September 27, 2024 • 9:30 am

The Atlantic decided they needed a piece on Richard Dawkins’s “farewell tour”, but they either chose the wrong journalist or asked the author to write a semi hit-piece that made Dawkins look bad. Not completely bad, mind you, for the author does mention a few good things Dawkins has done. But, overall, the piece depicts an aging man who simply needs to fight battles, and now there are no battles to fight.  Once it was creationism, says senior editor Ross Andersen, but now it’s the lesser battle of “fighting wokeness”.

Since Andersen himself shows signs of “progressive” thought in his piece (he defends, for example, the teaching Māori legends as science in New Zealand), he may have an animus against Richard. I don’t know, but I know two things. First, Andersen shows no signs of having read Dawkins’s books or followed his career.  Second, Anderson ends his piece, which describes his opinion of Richard’s recent lecture in Washington D.C., by saying “I was bored.” His pronouncement is distinctly un-journalistic given that Andersen describes a very enthusiastic audience lining up to get books signed, and bespeaks a reviewer more concerned with his own personal reaction than with the effect of Dawkins, his writing, and his Washington discussion on the audience (and on society in general).

Click on the headline below to read it, or, if you can’t, you can find it archived here. Several readers sent me this piece—I suppose expecting to get my reaction. So here it is: the piece stinks.

The dissing starts off in a subtle way with the title (granted, Andersen may not have written it, but the Atlantic approved it). But in the second sentence, Andersen says this:

[Dawkins] has adapted his swaggering Oxbridge eloquence to a variety of media ecosystems.

Anybody who knows or has even heard Richard knows that his eloquence is not “swaggering,” but measured and reserved.  But I’ll leave that aside and pass on. Here, also, in the first paragraph, Andersen describes Dawkins’s first foray into atheism:

In 2006’s The God Delusion, another mega–best seller, Dawkins antagonized the world’s religions.

“Antagonized the world’s religions”?  Well, yes, some believers may have been offended, but what about adding that this book made an eloquent argument against religion, and, in fact (as Andersen says later!), changed people’s lives for the better. That sentence is like saying, “In Mein Kampf, Hitler antagonized the world’s Jews.”  It may be true, but both statements are certainly pejorative and woefully incomplete.

Throughout the piece, Anderson describes how energized, worshipful, and jazzed up the audience was. But of course Anderson was “bored”.  Here is part of his description:

Now, at age 83, Dawkins is saying goodbye to the lecture circuit with a five-country tour that he’s marketing as his “Final Bow.” Earlier this month, I went to see him at the Warner Theatre in Washington, D.C. Dawkins has said that when he visits the U.S., he has the most fun in the Bible Belt, but most of his farewell-tour appearances will take place in godless coastal cities. After all, Dawkins has a new book to sell—The Genetic Book of the Dead—and at the Warner, it was selling well. I saw several people holding two or three copies, and one man walking around awkwardly with nine, steadying the whole stack beneath his chin. The line to buy books snaked away from the theater entrance and ran all the way up the stairs. It was longer than the line for the bar.

As for the audience, which was surely diverse:

The packed theater looked like a subreddit come to life. Bald white heads poked above the seat backs, as did a few ponytails and fedoras. This being an assembly of freethinkers, there was no standard uniform, but I did spot lots of goatees and black T-shirts. The faded silk-screen graphics on the tees varied. One was covered in equations. Another featured a taxonomy of jellyfish extending onto its sleeves. These people had not come here merely to see a performer; Dawkins had changed many of their lives. A man in the row behind me said that he had attended Dawkins’s show in Newark, New Jersey, the previous night. As a Christian teen, he had sought out videos of Dawkins, hoping that they would prepare him to rebut arguments for evolution. He ultimately found himself defeated by the zoologist’s logic, and gave up his faith.

. . . Jake Klein, the director of the Virginia Chapter of Atheists for Liberty [JAC: the “warm-up” act], told a similar conversion story onstage, before introducing Dawkins. Klein said The God Delusion had radicalized him against the Orthodox Judaism of his youth. Millions of other creationists had similar experiences, Klein said. He credited Dawkins with catalyzing an important triumph of reason over blind superstition.

Indeed, Dawkins has changed many lives for the better; his books were an important impetus for people not only accepting the scientific truth of evolution, but also grasping the wonder and majesty of both natural selection and evolution—not to mention helping people throw off the constricting chains of religion. (I’m a small fish, but I myself have been told that that Why Evolution is True and Faith Versus Fact have also changed lives.) Given the dominance of creationism in America—37% of Americans still accept Biblical creationism, 34% accept a form of God-guided evolution, while a mere 24% accept naturalistic evolution, making a total of 71% of Americans who think the supernatural played a role in evolution—accepting naturalistic evolution as true is a powerful reason to jettison your faith. And that’s what several people have told me about my first trade book.

More on audience appreciation for what Dawkins has done (attacking wokeness), a description tinged with opprobrium (my bolding):

Now that mainstream culture has moved on from big debates about evolution and theism, he no longer has a prominent foe that so perfectly suits his singular talent for explaining the creative power of biology. And so he’s playing whack-a-mole, swinging full strength, and without much discernment, at anything that strikes him as even vaguely irrational. His fans at the Warner Theatre didn’t seem to mind. For all I know, some of them had come with the sole intent of hearing Dawkins weigh in on the latest campus disputes and cancellations.

For nearly an hour, Dawkins stuck largely to science, and it served him well. The latter half of the evening was heavier on culture-war material. To whoops and hollers, Dawkins expressed astonishment that anyone could believe that sex is a continuum, instead of a straightforward binary. He described safety-craving college students as “pathetic wimps.” It all seemed small, compared with the majesty of the ideas he’d been discussing just minutes before.

Is the discussion of wokeness (mainly how ideology affects science) a problem? And doesn’t the author realize that the interlocutor, economist Steven Levitt, confected the questions without Dawkins’s knowledge of what they’d be? If Levitt wanted to ask Dawkins about wokeness or campus ferment, is that Dawkins’s fault? Besides, the audience wanted to hear a thoughtful person’s take on wokeness, which includes science: not only the biology of sex, but the low value of indigenous “knowledge” (see below).

And that brings us to one of several major misconceptions about Dawkins. Andersen seems to think that, throughout Richard’s life, he was motivated by contentiousness: everything he did was motivated by his need to have an enemy. That enemy was, avers Andersen initially creationism, but now has morphed into wokeness (see “whack-a-mole” above):

The day before, on a video call, Dawkins told me that he was puzzled—and disquieted—by the support he has received from the political right. He tends to support the Labour Party. He loathes Donald Trump. The New Atheist movement arose partly in response to the ascent of George W. Bush and other evangelicals in Republican politics. Its leaders—Dawkins, along with Sam HarrisChristopher Hitchens, and Daniel Dennett—worried that public-school students would soon be learning creationism in biology class. But there has since been a realignment in America’s culture wars. Americans still fight over the separation of church and state, but arguments about evolution have almost completely vanished from electoral politics and the broader zeitgeist. With no great crusade against creationism to occupy him, Dawkins’s most visible moments over the past 15 years have been not as a scientist but as a crusader against “wokeness”—even before that was the preferred term.

First, creationism is still with us, and in a big way. I gave the figures above, but Andersen, who’s supposed to know science, doesn’t seem to realize that far more Americans are creationists than are materialistic evolutionists, and more than 7 out of 10 of us think that God played some role in evolution. We have a long way to go.  Further, arguments about evolution aren’t gone, for the Intelligent Design miscreants are still plaguing us. As for electoral politics, evolution never played a prominent role there except once (in 2008, three of the Republican Presidential candidates in a debate raised their hands to show they didn’t accept evolution.) Evolution simply isn’t on the electoral agenda compared to the economy and, right now, immigration. And doesn’t Andersen know that the Speaker of the House, Mike Johnson, is a creationist?  Further, many of us worry, and justifiably so, that the Supreme Court, which hasn’t adjudicated the teaching of evolution since 1987, might now revisit the issue and allow creationism to be taught. Given the present composition of the court, that’s entirely possible.

I’ve known Richard for much longer than has Andersen, and I can’t agree with his conclusion that Richard needs an enemy to thrive.  Dawkins started off writing a book expounding how evolution worked (The Selfish Gene), and as far as I remember that book barely mentions creationism, if at all. It was designed not to fight creationists but to enlighten both scientists and readers about how natural selection worked. This was followed by more books explaining evolution (Climbing Mount Improbable. The Extended Phenotype—Richard’s favorite—and my favorite, the Blind Watchmaker) and of course there are several more books explaining evolution.

The fight against creationism, I think, only came later, when Richard saw to his dismay that his views weren’t immediately embraced by the American public (I had the same reaction when I wrote Wby Evolution is True). He saw, correctly, that that opposition came almost exclusively from religion. And so, only in 2009 (three decades after The Selfish Gene) did Richard write an explicitly anticreationist book: The Greatest Show on Earth: The Evidcence for Evolution. My own parallel is having the same realization about religious opposition to evolution, which led to my writing Faith Versus Fact after WEIT. Richard’s main motivation, as I see it, was not to fight creationism, but to share the wonder of evolution and natural selection that he himself felt. Since The Selfish Gene, he’s written 18 books, only two against religion and creationism; and his most recent books,  Flights of Fancy: Defying Gravity by Design and Evolution, and The Genetic Book of the Dead: A Darwinian Reverie, are pure science.

As for Richard’s new “opponent”, wokeness, Andersen has to reach back into Dawkins’s Precambrian Twitter feed, basing this criticdism on just three tweets. He even mentions Elevatorgate, without noting that Richard apologized for that tweet. And as for this one, well, I see nothing wrong with it: it raises a good question for debate first broached by philosopher Rebecca Tuvel in the journal Hypatia:

Dawkins is raising the question for discussion, though Andersen denigrates this important issue by saying it’s a “just-asking-questions” (JAQ) tweet.  He doesn’t seem to realize that Dawkins was a professor and teacher, and this is very similar to the kind of questions an Oxford don would ask his students to write about.

At any rate, Andersen really shows his own wokeness, and, importantly, his ignorance of what’s going on in New Zealand, when he criticizes Richard’s emphasis on not teaching Māori “ways of knowing” alongside and coequal to modern science in New Zealand. This is an ongoing problem that I’ve written about many times, and one Andersen wrongly dismisses as a non-problem:

The tale of Lysenko is almost fable-like in its moral purity, and Dawkins told it well, but only as a setup for a contemporary controversy that he wished to discuss—an ongoing dispute over school curricula in New Zealand. According to one proposal, students there would learn traditional creation stories and myths alongside standard science lessons, out of deference to the Māori, whose language and culture British settlers had tried earnestly to erase. Dawkins noted that some eminent New Zealand scientists had “stuck their heads above the parapet” to object to this idea with an open letter in 2021, and were “unpleasantly punished” for doing so. He called this mob rule, and expressed concern for the young students. They could end up confused, he said, forced as they would be to reconcile lessons about the “sky father” and “earth mother” with those that concern the Big Bang and evolution.

I suspect that kids can hold those two things in mind. I suspect also that the project of science—no innocent bystander in the treatment of Indigenous people—will be best served if its most prominent voices address themselves to the Māori, and other such groups, in an imaginative spirit of synthesis and reconciliation. But even if I am wrong about all that, the specter of Lysenko would seem to have little bearing on a case in which no scientist has been officially punished. Complaints about the open letter did produce an initial investigation by the Royal Society Te Apārangi, as a matter of process, but nothing more.

The errors in these two paragraphs are at least four:

1.) The endeavor to keep modern science free from indigenous superstition was not just in the Listener Letter, but is an ongoing battle between rationalism and superstition.

2.) The battle continues because kids CANNOT hold two different conceptions of science in their mind at once. It is confusing and simply bad pedagogy.

3.) Scientists were officially punished for denying the scientific worth of indigenous knowledge. See this report by the New Zealand Initiative. Not only were professors punished and investigated, but the ubiquity of Māori sacralization in New Zealand has chilled both university teaching and the speech of professors and students.

4.) Andersen’s ignorance is particularly strong when, Tom-Friedman-like, he proposes a melding of Māori “ways of knowing” and science in “an imaginative spirit of synthesis and reconciliation.”  That idea has led to the ludicrous notion, for example, that kauri blight (a tree disease) might be cured by rubbing the trees with whale bones and whale oil while saying Māori prayers. That is the imaginative synthesis that’s happening at this moment, and it’s in all the sciences.

The final paragraph is, frankly, offensive to journalists and readers alike:

After he took his last bow, the lights went out, and I tried to understand what I was feeling. I didn’t leave the show offended. I wasn’t upset. It was something milder than that. I was bored.

Who cares if Andersen was bored? The crowd wasn’t bored and many paid extra for VIP tickets to get their books custom-signed and say a few words to Richard, while others formed a bigger line to get pre-signed books.  All we learn here is that the author feels superior to both Dawkins and the crowd.  I went to Dawkins’s talk here in Chicago, and I wasn’t bored, even at times when I disagreed with what Richard said.  And I’m an evolutionary biologist who’s written a lot about the fracas in New Zealand.  It appears that Mr. Andersen is not just journalistically ham-handed, but also incurious.

Scientific American is back to distorting the facts to buttress its ideology

October 24, 2023 • 11:00 am

It’s been a while since Scientific American has published misleading and distorted articles to buttress its “progressive” Left ideology, and I hoped they had shaped up. (To be honest, I haven’t followed the magazine, and got the following link from a reader.) My hope was dashed yesterday when I read this new article claiming that women constituted a high proportion of hunters in early hunter-gatherer societies.  It is full of misconceptions and distortions (some of which must be deliberate), neglects contrary data, is replete with tendentious ideological claims, and even misrepresents the claim they’re debunking.  You can read it for free by clicking on the screenshot below or by going here:

First, the idea that they’re trying to debunk is that women were “second class citizens” in early societies, forced to gather food because they were tied to childcare duties, while men did all the hunting. This is apparently an attempt to buttress the editors’ and authors’ feminism. But feminism doesn’t need buttressing with data on hunting; women’s equality is a moral proposition that doesn’t depend on observations about hunting. In other words, women have equal moral rights and should not be treated unfairly because fair treatment is the moral thing to do. If women never hunted, would we then be justified in treating them as second-class citizens? Hell, no!  Here’s their thesis:

Even if you’re not an anthropologist, you’ve probably encountered one of this field’s most influential notions, known as Man the Hunter. The theory proposes that hunting was a major driver of human evolution and that men carried this activity out to the exclusion of women. It holds that human ancestors had a division of labor, rooted in biological differences between males and females, in which males evolved to hunt and provide, and females tended to children and domestic duties. It assumes that males are physically superior to females and that pregnancy and child-rearing reduce or eliminate a female’s ability to hunt.

Man the Hunter has dominated the study of human evolution for nearly half a century and pervaded popular culture. It is represented in museum dioramas and textbook figures, Saturday morning cartoons and feature films. The thing is, it’s wrong.

The story is in fact the cover story of the November issue, so the magazine will never, ever issue a correction or clarification:

Click to read for yourself:

First, note that I’ve written at least five pieces on the “woman hunter” hypothesis: here, here, here, here, and here. The source of the hypothesis was a PLOS One paper arguing the following (from the PLOS One paper):

Of the 63 different foraging societies, 50 (79%) of the groups had documentation on women hunting. Of the 50 societies that had documentation on women hunting, 41 societies had data on whether women hunting was intentional or opportunistic. Of the latter, 36 (87%) of the foraging societies described women’s hunting as intentional, as opposed to the 5 (12%) societies that described hunting as opportunistic. In societies where hunting is considered the most important subsistence activity, women actively participated in hunting 100% of the time.

According to the authors’ data, then, 36 out of 50 societies in which there were data on women hunting (72%), the hunting was intentional.  That is the important result: in most societies, women participated in hunting.  The present paper also implies that this was not rare participation—say a few women included in a big hunting party—but that women constituted a substantial proportion of those engaged in hunting, and that a substantial proportion of hunter-gatherer societies had women hunting.  Here’s how the new Sci Am paper ends:

Now when you think of “cave people,” we hope, you will imagine a mixed-sex group of hunters encircling an errant reindeer or knapping stone tools together rather than a heavy-browed man with a club over one shoulder and a trailing bride. Hunting may have been remade as a masculine activity in recent times, but for most of human history, it belonged to everyone.

“Hunting. . .  belonged to everyone” clearly implies, as the paper does throughout, that women’s hunting was nearly as frequent and important as men’s hunting. This is an essential part of the authors’ ideological contention, for if women hunted only rarely, or constituted only a small fraction of hunting groups, that would imply intolerable hunting inequity.

But the authors’ defense of their hypothesis is deeply flawed. Here are six reasons, and I’ll try to be brief:

1.)  Nobody maintains that, as the authors assert, “men carried this activity out to the exclusion of women”. This may have been a trope in the past, but even those rebutting Obocock and Lacy’s (henceforth O&L’s) data these days do not claim that women never hunted. Of course they did, and no scientist would say that “no women ever hunted” because we cannot document that. The question, which the authors don’t address, is how frequently they hunted and what proportion of hunters did they constitute?  (See below for more.)

2.) I don’t know anyone (I may have missed some) who argues that men evolved to hunt: that is, natural selection acting on hunting behavior itself caused a difference in the sexes in their propensity to hunt. The alternative hypothesis—and one that is far more credible—is that sexual selection based on male-male competition and female choice led, in our ancestors, to the evolution of greater size, strength, musculature, and physiology in men than in women. Once that had evolved, then men would obviously be the sex that would participate in hunting. (And yes, childcare by women is also a possible reason.) The authors’ claim that “males evolved to hunt and provide, and females tended to children and domestic duties” is thus misleading in that males probably got their generally superior athletic abilities (see below) as a result of selection, and their hunting then became a byproduct of that. Similarly, women tend to their children more because that’s another result of sexual selection (women have greater reproductive investment in children), and their lower participation in hunting could also be a byproduct of that.

O&L don’t mention this alternative hypothesis in their paper.

3). The authors neglect important data casting doubt on O&L’s conclusions. Soon after the original paper by Anderson et al. appeared, other anthropologists began to find fault with it. To see examples of how Anderson et al.’s data is dubious,  see my posts here, here and here giving other people’s rebuttals.

Here are the conclusions from one critique, which does recognize women’s value in hunting small animals:

100% of the societies had a sexual division of labor in hunting. Women may have participated with men in some hunting contexts, typically capturing small game with nets, but participated much less in large game hunting with weapons or by persistence. Even within these contexts, it was usually the case that the role of women during the communal hunt was different. For example, women flushed wild game into nets while men dispatched the game.

These are my subjective ratings based on the papers I read in Anderson et al. (2023) and the supporting literature I cited. You may disagree and assign some different ratings. The point is that there is substantial variation across cultures in sex-based hunting roles. Additionally, none of the societies truly have an absence of these roles.

. . . Why did the perception of “man the hunter” arise? It’s likely because we see many sex-segregated hunting practices, particularly in hunting large game with weapons. Additionally, when you think of hunting, the first thing that comes to mind may not be chasing birds into nets. You probably think of a man with a spear — usually a man, not a woman, with a spear.

Here are tweets from another anthropologist looking at many societies, about which I wrote this:

Before I go, I’ll call your attention to a series of tweets by Vivek Venkataraman (start here on Twitter), an assistant professor in the Department of Anthropology and Archaeology of the University of Calgary. His university webpage describes his interests:

Dr. Venkataraman is an evolutionary anthropologist who is broadly interested in the evolution of the human diet and food systems, and their relation to life history and behavior. He is assistant director of the Guassa Gelada Research Project ,and also the co-founder and co-PI of the Orang Asli Health and Lifeways Project (OAHeLP)

Venkataraman is somewhat dubious about some of the PLOS One paper’s results, especially the 80% frequency of women hunting among all hunter-gather societies. On the other hand, like me, he applauds any new data that can change our views of biology, and thinks the frequency of hunter-gatherer societies in which women hunt is somewhere between 13% and 80%; but he also thinks that women’s hunting was even more frequent in the past than it is now (see below)

Have a look at these. . . .  tweets, which involve examining many more “forager” societies:

 

The O&L paper does not mention these criticisms, and therefore does not answer them.  They are relying on data that has come into severe question because of its incompleteness and possible cherry-picking. They simply cannot be unaware of these data; they just ignored them.  (Note: I haven’t looked for more recent data addressing O&L’s claim,)

4.) The authors repeatedly imply that, in effect, males and females are equal in athletic performance, undercutting the idea that men hunted because they were athletically better equipped to hunt. But O&L’s claim of “athletic equity” is false. The authors note that women outcompete men in some endurance sports, citing this:

Females are more regularly dominating ultraendurance events such as the more than 260-mile Montane Spine foot race through England and Scotland, the 21-mile swim across the English Channel and the 4,300-mile Trans Am cycling race across the U.S.

I looked up the Montane Spine Foot race, and the Wikipedia tables for summer and winter events give the results of 17 races, one of which was won by women. (I presume they compete together; if not, the women’s times are still slower.)

Likewise, in all English Channel crossings in which there are men’s and women’s records (there are two- and three-way crossings in addition to single crossings), the men have faster times.

Finally, in all the Trans Am Bike Race results given on Wikipedia (11 are shown), a woman won only once: Lael Wilcox in the 2016 eastbound race. In all other races save one, in which a woman finished third, no women ever placed in the top three.

I conclude that O&L’s claim that women “regularly dominate” in these events is at best a distortion, at worst a lie. There is no “dominance” evident if a woman only had the fastest time in a single event.

Further, while it may be the case (I didn’t look it up) that women more often win events in archery, shooting, and badminton, in every other competitive sport I know of, men do better than women. Here is a table from Duke Law’s Center for Sports Law and Policy giving men’s and women’s best performances in 11 track and field events, as well as boys’ and girls’ best performances. In every case, not only was the record held by a man, but the best boy’s performance was better than the best women’s performance.

There is no doubt that, across nearly all sports, men perform better than women. That’s expected because of men’s greater upper-body strength, bone strength, athletic-related physiology, and grip strength. I didn’t look up sports like tennis, but we all know that the best men outcompete the best women by a long shot, something Serena Williams has admitted.  And. . .

She and her sister Venus were both thrashed by Germany’s world No.203 Karsten Braasch at the Australian Open in 1998 while trying to prove they could beat any man outside the top 200.

If I erred here, please correct me!

Here’s a quote by O&L (my bolding)

The inequity between male and female athletes is a result not of inherent biological differences between the sexes but of biases in how they are treated in sports. As an example, some endurance-running events allow the use of professional runners called pacesetters to help competitors perform their best. Men are not permitted to act as pacesetters in many women’s events because of the belief that they will make the women “artificially faster,” as though women were not actually doing the running themselves.

Here the authors are wading into quicksand. In fact, the entire quote is offensive to reason, for it implies that, if women were treated the same as men in sports, they would do as well. Given the differences between the sexes in morphology and physiology, such a claim flies in the face of everything we know.  The “pacesetters” argument is purely hypothetical, and I’m betting that women who had pacesetter men (note: not pacesetter women), would not turn women into winners. But of course it’s worth a try if O&L are right.

5.) O&L claim that both sex and gender are a spectrum, and sex is not binary. Here’s their quote (emphasis is mine):

For the purpose of describing anatomical and physiological evidence, most of the literature uses “female” and “male,” so we use those words here when discussing the results of such studies. For ethnographic and archaeological evidence, we are attempting to reconstruct social roles, for which the terms “woman” and “man” are usually used. Unfortunately, both these word sets assume a binary, which does not exist biologically, psychologically or socially. Sex and gender both exist as a spectrum, but when citing the work of others, it is difficult to add that nuance.

No, Scientific American: I know your editor thinks that biological sex is a spectrum, but she’s wrong and so are you. The “sex is a spectrum” mantra is another ideological tactic mistakenly used to buttress trans people or people of non-standard genders. But Mother Nature doesn’t care about ideology, and, as Luana Maroja and I showed in our paper on “The Ideological Subversion of Biology” (see point #1, about sex), sex is binary in all animals. In humans, for example, the frequency of exceptions to the binary is only 0.018%, or 1 person in 5600. That is about the same probability of flipping a nickel and having it land on its edge, but we don’t say “heads, tail, or edge?” when calling a coin toss.  For all practical purposes, sex is binary, and if you want to argue about it, don’t do so here. And, as Luana and I emphasized, whether or not sex is binary has no bearing on the treatment (or nearly all rights) of trans and non-standard-gender folks.

6.) Whether or how often women hunted is irrelevant to our views of men and women. Really, why does ideology push Scientific American, and in this case O&L, to distort the facts and to leave out contrary data, when the rights of women don’t depend in the least on whether they hunted or on their relative athletic performance?  Women’s rights rest on morality, not on observations of nature. Yes, there are some trivial exceptions, like those of us who don’t think that transwomen should be allowed to compete athletically against biological women, but there are many feminists who agree with that.  The real feminist program of equal rights and opportunities for women has nothing to do with whether they hunted as much as men in ancient (or in modern) hunter-gatherer societies.

In the end, we have still more evidence that Scientific American is no longer circling the drain, but is now in the drain, headed for, well, the sewers. It used to have scientists writing about their field, with no ideological bias, but now has ideologues (these authors happen to be scientist-ideologues) writing about science in a biased and misleading way.

Apparently this trend will continue, and apparently the publishers won’t do anything about it. So it goes. But those of you who want your science untainted by “progressive” ideology had best look elsewhere.

Should we cite the scientific work of colleagues who were sexual harassers?

June 25, 2023 • 12:00 pm

There’s a new movement afoot for “citation justice” a form of affirmative action in which we should cite scientists who are marginalized as a way of boosting their careers.  I’m referring to citations in scientific papers, and here’s one example: “maps of chromosomes can be constructed by the pattern of recombination shown by alleles producing visible mutations (Morgan and Bridges, 1919)”.

While I still think affirmative action should be practiced in some realms, like college admissions and hiring, I don’t favor practicing it in scientific papers as a form of reparations.  My philosophy (which I may not always have acted on!) is that when presenting other people’s ideas, facts, or results, you should give the most relevant citations: those that best demonstrate the phenomenon discussed. And you should be parsimonious: avoid overcitation and don’t put in too many different citations that show the same thing. In other words, I use citations based on their value to their paper—their merit, as you will.

Others feel differently, and I’m not going to argue with them except to say that if you leave out citations that are more relevant or important in favor of citations by marginalized scientists, you’re lowering the bar for citation, which could result in a poorer paper.  (This of course implies that I think that science papers should function to build up the edifice of science, not effect social justice, which is better done other ways.)

However, the authors of this paper from the American Astronomical Society note that some groups are undercited:

. . . . it has also been found that when researchers cite others, they are less likely to cite women and scholars of color at rates that match their respective contributions to the field. Many reasons for these unequal citation practices have been suggested, ranging from implicit or unconscious bias to careless citation practices (such as not seeking out the original reference) to consciously choosing to exclude certain researchers and/or groups when citing others.

If it is indeed the case that women and scholars of color aren’t cited as frequently as they should be given the relevance of their work to the paper, then that should be rectified.  Remember, a citation is there to document a statement or fact, not to laud somebody’s accomplishments, so what’s important here is not “respective contributions to the field” but “relevance of their work to the statement requiring documentation.”  If there is under-citation in this sense, then scientists should indeed do something about it when they write papers.

But the topic of the article below is this question:

 This leads to the crux of many recent discussions: is it ever acceptable to intentionally choose not to cite someone(s)?

Their answer seems to be “yes, it could be acceptable to deliberately omit a relevant citation, though there’s no cut-and-dried rule”.

Click screenshot to read:

The authors first lay out, in a good summary, why scientists use citations:

Currently, the relevant portion of the AAS Code of Ethics is found in the Publications and Authorship section of the Ethics Statement:

Proper acknowledgment of the work of others should always be given. Deliberate, wanton omission of a pertinent author or reference is unacceptable. Authors have an obligation to their colleagues and the scientific community to include a set of references that communicates the precedents, sources, and context of the reported work. Data provided by others must be cited appropriately, even if obtained from a public database.

The statement reminds us that there are several reasons why we are expected to cite others in our publications.  These include citations as an acknowledgment of the contributions of others to the ideas in our work, as well as to avoid plagiarism, and we cite others to justify our methods, assumptions, and research practices. Citations are also important for maintaining the integrity of the academic record and tracing the development of ideas over time, both for the historical record as well as for a proper understanding of how a research field has evolved.

To me, this alone implies that you cite based on relevance, not as a way to effect social justice. And even if authors have done some bad things, if their research is solid and relevant to the point being made, you should cite them. Not doing so violates all the reasons given above.

But moral considerations then creep into the article of Hughes et al.:

In the case of unethical research practices, we can look to other fields outside of astronomy for some guidance. The AMA (American Medical Association) Code of Medical Ethics suggests that when researchers engage with results that were obtained in a clearly unethical way, such as Nazi experimentation on humans during WWII or the Tuskegee Syphilis Study, they should first seek to cite studies that used ethical methods and obtained the same results. If that is not possible, then the harm involved in obtaining the results should be disclosed and acknowledged, the reason for needing to cite the study justified, and the authors should pay respect to the victims of the behavior.

I’m not sure that there are any results of Nazi medical experiments that are even worth citing; I remember reading one scholar’s conclusion that these experiments were so slipshod that they never produced anything of value, even given their aims—to save German soldiers (or, in Mengele’s case, to satisfy a sadistic curiosity). And nearly everyone now knows of the Tuskegee Syphilis Study and about its unethicality. I don’t know if it generated any useful data, but to have to stop in the middle of the paper and recite a screed in honor of the victims seems to me a bit much. I’d rather just say “see X”, where “X” is a discussion of the harms produced by that study. Moral genuflection (“I will now show that I realize this work was unethical”) is somewhat demeaning in a case like the Nazis and Tuskeegee. In fact, I’m hard pressed to think of having to cite any study that requires that kind of qualification and explanation.

But the authors do find one case where citations may be properly left out without any qualification: when the scientist cited is a sexual harasser. As they say:

But the guidance becomes less clear when it comes to dealing with citations of documented sexual and serial harassers. While there have been several recent high-profile cases in astronomy, many other fields are currently struggling with this same issue. The arguments of whether we should cite these individuals boil down to two main positions:

Note that the links go to two sides of the argument, the “Yes” from my law-school colleague Brian Leiter.

This is the starting point from which the AAS Code of Ethics Committee, the AAS Publications Committee, and the Ethics Working Group are confronting the issue. There are several related questions to grapple with:

Here are the questions that, according to Hughes et al. must be answered before you can decide whether or not to cite a harasser:

  1. Is the research unethical, or is the person’s behavior unethical, and does it matter?
  2. Is sexual harassment a form of research misconduct? The American Geophysical Union says yes, and the NSF has instituted policies that require institutions to report sexual harassment findings which can lead to the revocation of grant funding. While the AAS code of ethics does not currently address this issue directly, the Astro2020 Decadal Report recommends that identity-based discrimination and harassment be recognized as causing the same level of harm to the integrity of research as is caused by research misconduct.
  3. How do we identify bad actors in our community? What is the threshold? By which temporal and cultural standards do we judge? Who ensures that the punishment fits the crime, and can there be a path to restoration?
  4. Who is harmed? What is the collateral damage? How do we limit future harm to the survivors of sexual harassment? Should we protect the junior colleagues and collaborators of bad actors from secondhand punishment, and if so, how? And when does the integrity of the scientific record take precedence?

The authors do admit that making a decision not to cite someone who’s a sexual harasser (and yes, the conclusion is that it may well be justified) is an “ethical gray area.”

But none of this stuff, to me, justifies not citing someone as a form of punishment because they engaged in documented sexual harassment.

Of course I abhor sexual harassment, and it should be dealt with promptly and properly.  But why is sexual harassment the only bad act that can be punished by canceling a citation? (And yes, canceling a citation means canceling the scientific community’s knowledge of relevant science.)  What about any felony: robbery, murder, or other bad acts like simple non-sexual harassment or bullying of students or colleagues? (It may be because the three authors, all women referred to as “she” or “her” on their professional webpages are more attuned to this form of bad behavior than are men.)

By all means punish those who engaged in misconduct—and apparently it doesn’t have to be “research misconduct” to make someone a “bad actor”. But remove their contributions from science? That’s a no-no to me.

I may be an outlier, but in my view there’s no good reason to not cite the scientific work of “bad actors” or harassers if the work itself is sound and relevant.  Even murderers should be cited if their work is relevant. There’s no “research misconduct” worse than killing one of your students, but to me even that’s not bad enough to expunge someone’s relevant work from science.

Punishment and ostracism  should be inflicted on people, not on science itself, for leaving out relevant citations because the person who did the work was bad is indeed hurting science, and scholarship in general.  Being fired or punished is enough; it’s not necessary (and is indeed harmful to science) to “punish” someone further by simply refusing to cite their work. If we did that, we wouldn’t cite great literature, for many famous authors were pretty bad people, including being sexual harassers.

In the end, I agree with Brian Leiter, whose “Yes” vote for not removing citations is explained in the 2018 Chronicle of Higher Education article linked to above: “Academic ethics: should scholars avoid citing the work of awful people?” (the three people cited in his first paragraph below were accused of sexual misconduct):

Certainly, scholars should condemn Frege, Searle, Ronell, and the like. But to excise from the canon of relevant knowledge those who are appalling people is simply a further betrayal of what justifies the existence of institutions devoted to scholarship.

. . . You should not — under any circumstances — adjust your citation practices to punish scholars for bad behavior. You betray both your discipline and the justification for your academic freedom by excising from your teaching and research the work of authors who have behaved unethically. Universities would, in principle, be justified in disciplining you for scholarly malfeasance, subject to appropriate peer assessment.

Such academic misconduct is unlikely to constitute a firing offense — unlike, say, serious plagiarism or fabrication of data. But researchers or teachers who let moral indignation interfere with scholarly judgment do betray the core purposes of the university and so open themselves to professional repercussions. The foundations of academic freedom demand nothing less.

h/t: Thanks to a scientist who does astronomy for alerting me to this piece.

Dawkins begins writing on Substack

June 7, 2023 • 10:45 am

There are only a few biologists on Substack that I know of (Colin Wright is another), so I welcome the addition of Richard Dawkins’s new site, “The Poetry of Reality,” which you can find at the link below:

You can subscribe for $70 per year, but can also subscribe for free to get the occasional public post.

So far there are two posts up. First, an introduction in which Richard poses a series of discussion questions (I’ll give just a couple of the many):

Rather than write a manifesto in the form of an essay, I have chosen to cast it as a series of propositions or questions, invariably followed by the word “Discuss”. It is not my intention to pose these discussion points to my guests. Rather I intend, by this repetition of “Discuss”,  to convey the atmosphere that I hope will pervade both forums, podcast and Substack. It should be an atmosphere of continual questioning, recurrent uncertainty, and I hope stimulating dialogue. “Discuss” really means discuss.

“There is a real world out there, and the only way to learn about it is objective evidence gathered by the scientific method.” Discuss.

“There is no such thing as your truth as distinct from my truth. “There is just the truth, and that means evidence-based scientific truth.” Discuss.

“Truth is not obtained by tradition, authority, holy books, faith or revelation. Truth is obtained by evidence and only evidence.” Discuss.

. . .What the hell is postmodernism? Have you ever met a self-styled postmodernist who could give you a coherent answer? Discuss.

What is a woman? Discuss.

You can already see that his site is going to attract attention!

Second, there’s a free post called “Evidence-based life,” a nice essay in which Richard argues that we should base our lives, as far as possible, on empirical evidence, avoiding “faith” or superstition. Here’s one paragraph from that, which I like because it’s related to something I wrote ten years ago (and in fact quoted Dawkins at the end):

Even expert scientists haven’t the time or the expertise to evaluate sciences other than their own. Most biologists are ill-equipped to understand modern physics. And vice versa although, I have to admit, to a lesser extent. In any case, nobody has the time to do full justice to all the detailed research papers in a journal such as Nature or Science, even if we could understand them. If we read a report that gravitational waves have been reliably detected as emanating from a collision between two distant galaxies, most of us take it on trust. It almost sounds like taking it on faith.  But it’s a faith that’s more securely grounded than, say, religious faith. That’s an understatement. When biologists like me express “faith” in the findings of physics, we know that physicists’ predictions have been verified by experimental measurements to find accuracy. Very different from “faith” in, for example, the doctrine of transubstantiation which makes no predictions at all, let alone testable and tested ones.

h/t: Daniel

Once again, ideology distorts science: the editor-in-chief of Scientific American flubs big time, wrongly asserting that sparrows have four sexes.

May 18, 2023 • 8:39 am

This is a sad story: sad for biology, sad for science communication, and perhaps saddest for Laura Helmuth, editor-in-chief of Scientific American. Over the past few years, Helmuth has injected a hefty dose of authoritarian progressive ideology into her magazine (see here for some of my posts on the issue). It’s gotten worse and worse, even though the readers, and her followers on Twitter, have repeatedly urged her to back off the ideology and restore the magazine to its former glory as the nation’s premier venue for popular science.  But Helmuth is woke, and, being religious in that sense, simply can’t keep the ideology out of the science, just as an evangelist can’t help asking you if you’ve heard the good news about Jesus.

The tweet Helmuth put up this week (shown below) is a prime example, and it’s pretty dire because it distorts biology—in particular the work of scientists who spent years studying the genetics and mating behavior of white-throated sparrows (Zonotrichia albicollis).  This is an interesting bird because both males and females show two forms (this is a “polymorphism”), with one form having a tan crown stripe and the other a white crown stripe.  Here is a picture of the two forms from a PNAS paper.

The forms also differ in their parental behavior and courtship.  I think you can get the differences by looking at the abstract of a paper by Elaina Tuttle, given below. Tuttle was an accomplished ornithological behaviorist who did part of her postdoc in Steve Pruett-Jones’s lab upstairs from me. It was her work that called attention to the involvement of inversions in the mating system of white-throated sparrows. Sadly, Tuttle died at only 52 of breast cancer.

Here’s a 2003 paper by Elaina on the species (found in North America) and its mating system (click to go to screenshot, and you can find the pdf here).

Her summary is below, showing that the two forms (“morphs’) mate disassortatively—that is, tan males prefer to mate with white females and vice versa.  There is also a difference in their behavior, with white males and females being more aggressive during the mating and breeding season:

Organisms exhibiting genetic polymorphism often also exhibit true alternative life-history strategies in which behavioral tactics are genetically fixed. Such systems are ideal for the study of the evolution of life histories because the consequences of selective episodes can be more easily identified. Here I report an interesting and classic example of a species exhibiting true alternative strategies. Due to a chromosomal inversion, male and female white-throated sparrows (Zonotrichia albicollis) occur as two distinct morphs, tan or white. Tan and white morphs mate disassortatively, and this mating pattern maintains the polymorphism in relatively equal proportions within the population. In comparison with tan males, white males are more aggressive, frequently intrude into neighboring territories, spend less time guarding their mates, occasionally attempt polygyny, and provide less parental care. White females are also more aggressive and solicit copulation from their mates twice as often as tan females.

Note that they mention just two sexes: males and females, each characterized by their color. Just two sexes!  The genetics of this system is complicated because, the genes causing the different colors and behaviors almost surely reside within a chromosomal inversion (a part of the chromosome that gets broken, turned around, and then reattached).  This makes it hard to do genetic analysis. Tuttle explains this:

. . . . . almost all white birds are heterozygous for the inversion (i.e., 2m/2, where 2m represents the inverted chromosome and 2 represents the noninverted form), whereas tan birds are homozygous noncarriers (i.e., 2/2). . .

The disassortative mating and different behavioral strategies have combined to make this variation remain fairly stable in the population, though I’m not sure there’s a population-genetic model showing how this actually. works. (That would be hard, as it would require knowing a number of parameters that are difficult to estimate but are required for a good model.)

Further, the tan and white morphs occasionally mate with their own color (about 4% of the time, probably an underestimate because of sneaky mating). This kind of mating is called assortative—like mates with like. Because of this, the two forms are not reproductively isolated. That’s why they’re not called different species.

Note that there are just two sexes here, as virtually all scientific papers describing this phenomenon realize: males make sperm; females make eggs. Here are two quotes from the Tuttle paper:

This species is polymorphic, and both sexes can be separated into tan and white morphs based on the color of the median crown stripe (Lowther, 1961).

and

White-throated sparrows may be an exception to this rule because, regardless of fitness effects, the genetic alternatives are present in both sexes, there is likely to be evolutionary mechanisms maintaining multiple strategies. . .

Just two sexes, and every ornithologist knows this. Even if each morph mated only with its own kind, so that there was total reproductive isolation between the forms and they would, in effect, be two species, there would still be just two species, with each having two sexes.

Now the popular press has mistaken this system for the phenomenon of “four sexes”, which is just flat wrong. The biological definition of sex involves what kind of gamete you make, and here there are only two.  Females make and lay eggs, males make sperm. For descriptions of this system showing “four sexes”, see here (Nature!), here, and here, among others.

That’s a distortion of the truth, and a misleading one that gender activists co-opt to say that “yes, animal sex is not binary”.  They are wrong. But in fact Laura Helmuth did just that in her tweet, citing a paper from Ken Kaufman’s Notebook in the Audubon News.  Kaufman says this (see more later):

It’s almost as if the White-throated Sparrow has four sexes. That may sound like a joke, but it’s actually a good description of what’s going on.

. . . Many different genes here are tightly linked to form a “supergene,” so that birds of one color morph also inherit a whole range of behaviors. The resulting effect is that the White-throat really does operate as a bird with four sexes. For anyone curious about the scientific background, you can read all the technical details here.

The Current Biology paper that the last link goes to does indeed say that the bird “operates as if it has four sexes”.  And I found a 2020 paper by Maney et al. in Hormones and Behavior called “Inside the supergene of the bird with four sexes.” But while the paper uses “four sexes” in the title, it also notes that that is merely a “nickname” for the species. Maney et al. then correctly refer to “both sexes” throughout.

But if there are four sexes, what are those sexes?  All you could say is “tan male”, :”white male”, “tan female,” and “white female.” But those are not sexes, as they don’t produce four different kinds of gametes. Nor is reproductive isolation between the tan and white morphs complete, so it’s not as if a “white male cannot mate with a white female”, which would be the case if these were four sexes. As I said, assortative (like-type) matings occur at least 4% of the time. Further, the offspring of some of those matings must, by virtue of the chromosomally-based system of mating, be fertile (i.e., if tan birds mate assortatively with tan birds, their offspring will be equivalent to the normal “tan” morph in behavior, appearance, and mating propensity).

If you’re a sane biologist and use the biological definition of sex, we have a species with two sexes, with each sex having two morphs. And the morphs mate disassortatively, but not completely so. It’s surely an interesting system, but deeply misleading to use it as an exception to the sex binary. It makes me angry when people like Helmuth do this, for on some level they must know they’re wrong.

Nevertheless, Helmuth wants to go with the popular press and with woke ideology rather than with science, and declares in the tweet below that the species has “four chromosomally distinct sexes.” (Even that isn’t true, as each morph has the same inversion type.) She underlines her ideology by adding her P.P.S.: “Sex is not binary,” as if this example disproves it.  My P.P.S. is “Yes, sex is binary and you know it.”

Two points here: Helmuth is dead wrong, as biologists working on this system realize. There are not four sexes.

Second, she is being deliberately obtuse because she wants to buttress her view, expressed elsewhere, that “sex is a spectrum.” This, of course, is a trope meant to go along with the view that gender is a spectrum, which gender activists somehow want to read into nature itself, seeing the same spectrum in nature that they see in society. But as Richard Feynman said, “Mother Nature can’t be fooled,” and all animals and vascular plants obstinately show just two sexes.

What is amusing about Helmuth’s tweet is that she was SO wrong that the deluge of critical comments eventually prompted Twitter’s “community notes” program to correct what she said (remember, this is the Editor-in-Chief of Scientific American), and append an “added context” note saying she’s wrong—with the “context” noting that there just two sexes, and each sex comes in two colors.

I don’t know about other scientists or science editors, but if I was publicly spanked on Twitter like Helmuth was below, I’d be hideously embarrassed, and either correct myself (she won’t), or delete the tweet, which conveys scientific misinformation. (Update: She’s cut off the comments on her post, clearly perturbed that there were so many, with the vast majority being critical._

This is what started the Twitter fracas. Note the “added context”, which readers can upvote.

And here’s what they call the “ratio” of comments to “likes” on her Tweet. This reflects the fact that the vast majority of people commenting on her tweet were critical. She has been, as the kids say, “ratioed”:

Scientists and informed laypeople immediately began going after this tweet, some polite and correcting it, others calling for Helmuth’s firing (I can understand that sentiment but I would never argue that anyone should be fired). One of the scientists, who had already debunked the sparrows as a violation of the sex binary, was Colin Wright, who wrote this on his website:

The second case study claims to investigate “the evolutionary consequences of more than two sexes.” Perhaps here we will finally be told what these new sexes are! But the first sentence moves the goalpost from “sexes” to “operative sexes,” which they never define.

The example they give of a species “with more than two sexes” is the white-throated sparrow (Zonotrichia albicollis). This species has two color morphs, males and females with either white or tan stripes. The more aggressive white stripe morph has a large inversion on chromosome 2, and the species mates disassortatively by color morph, meaning that white stripe morphs tend to mate with tan striped morphs. This chromosome inversion coupled with the disassortative mating by morph has led to a situation where chromosome 2 “behaves like” another sex chromosome.

He adds to that that in a tweet below issued as a comment on Helmuth’s tweet:

What happened? Helmuth blocked Wright (that’s what it means in the red rectangle below):

Wright then clarifies the story and calls attention to his being blocked. He’s right: Helmuth couldn’t abide the truth:

Emma Hilton also replied to Helmuth:

 

And Emma got blocked, too:

However, Carole Hooven, another critic of the “non-binary” view of sex, doesn’t seem to have been blocked. Perhaps I’ll be too, but I haven’t been yet.

Finally, Agustín Fuentes, the cultural anthropologist from Princeton whom we’ve met before, retweeted Helmuth’s post, for he’s denied the sex binary too, and in Scientific American!). But being thin-skinned, he puts in an addendum saying that the quote he gives is not his own. But he still apparently embraces the idea that there is no sex binary in humans.

 

To sum up, Helmuth is tweeting wrong things about biology in the service of her ideology, an ideology that she doesn’t just embrace, but has infused into the magazine she runs. Perhaps Scientific American wants to become Ideological American, but I’m hoping things will turn around. They would if Helmuth could simply adopt the idea that she shouldn’t use the magazine as a mouthpiece for her politics, but she won’t do that. Also, she refuses to engage with scientific criticism, not a good look for an editor. This exchange exemplifies that:

And if I were friends with Helmuth, I’d tell her this.

h/t: Steve, Colin