Emma Hilton Profile picture
Nov 29, 2020 57 tweets 8 min read Read on X
Here is my transcript. Actual details may vary.

#FeministAcademicsTalkBack

On modern day creationism. A thread.
"In the 1920s, in concert with many other American states, the Tennessee House of Representatives passed the Butler Act, making it illegal for state public schools to: “teach any theory that denies the Story of the Divine Creation of man as taught in the Bible.”
In other words, this law banned schools from teaching the theory of evolution.
Three months later, Tennessee science teacher John Scopes was on trial, charged with teaching the theory of evolution, a crime he was ultimately found guilty of. He was fined $100 – about $1500 in today’s money.
Yet, despite the evidence against him and his own confession, he was an innocent man. Scopes was not guilty of teaching the theory of evolution. He admitted to a crime he had not committed. He even coached his students in their testimonies against him.
So why would he admit to this wrongdoing of which he was entirely innocent? Why would he contrive apparent guilt?

In protest.

In protest against a law he viewed as fundamentally incompatible with the pursuit of scientific truth.
The history of creationism and education laws in the US is turbulent and often opaquely legalese, especially for those of us unfamiliar with US law. Some of the methods of the wider creationist movement, however, will be immediately recognisable.
...as they are employed by a new movement, one which seeks to erase another scientific truth, the fact of sex.
Method 1. The framing of human classifications, whether it’s species or sex, as “arbitrary”. This leads to the premise that such phenomena are “social constructs” that need not exist if we chose to reject them. That truth must be relative and consensual.
Never mind that these “arbitrary” classifications appear to be surprisingly similar classifications across all cultures and civilisations.
It also necessarily spotlights tricky cases – not really a personal problem for the long-dead evolutionary missing links, but a very real problem in the modern world for people whose sex is atypical.
..and who are constantly invoked, even fetishized, as “not males” or “not females” to prove sex classification is somehow no more than human whimsy. People with DSDs have complex and often traumatic medical histories, perhaps struggling to understand their bodies...
...and they deserve more respect than to be casually and thoughtlessly used as a postemodernist “gotcha” by the very people so horribly triggered by a pronoun.
Method 2. The distortion of science and sciencey language to create a veneer of academic rigour. Creationists invented “irreducible complexity” and “specified complexity” while Sex Denialists beat people with “bimodal distributions arranged in n-dimensional space”.
Creationists, unable to publish in mainstream science journals because they weren’t producing, well, science, established their own journals.

“Journals”.
Sex Denialists have captured existing journals - albeit limited to more news-y ones and to occasional editorials and blogs about gender (which is not sex)...
...that developmental biology is soooo complicated (which does not mean sex is complicated – the internal combustion engine is complicated, but cars still fundamentally go forwards or backwards)....
...that discussing the biology of sex is "mean" (good luck with that at your doctor’s surgery).
Many such blogs and articles are written by scientists who simultaneously deny sex to their social media audience while writing academic papers about how female fruitflies make shells for their eggs (no matter how queer they are).
They write about the development of ovaries or testes in fish and about how males make sperm.

In academic papers. Not in your tweets.
The current editor-in-chief at Nature, the first female to hold this position, studied sex determination in worms for her PhD. @Magda_Skipper
She now presides over a journal with an editorial policy to insert disclaimers about the binary nature of sex into spotlight features about research on, for example, different death rates in male and female cystic fibrosis patients.
The authors of the studies are not prevaricating or handwaving about sex, but the editorial team is “bending the knee”.
I used to research a genetic disorder that was male-lethal – that is, male human babies died early in gestation.

I’d love to know if this disclaimer would be applied there.
Method 3. Debate strategies like The Gish Gallop. This method is named for Duane Gish, who is a prominent creationist.
What this boils down to is: throw any old argument, regardless of its validity, in quick succession at your opponent and then claim any dismissal or missed response or even hesitation in response as a score for your side.
In Twitter parlance, we know this as “sealioning”, in political propaganda as the “firehose of falsehood”, although Wikipedia also suggests that it is covered by the term “bullshit”.
"What about intersex people? this article? an XY person with a uterus? the fa’afafine? that article? pretty picture. what about what about whataboutery what about...

Clownfish?"

The aim is not to discuss or debate, it is to force submission from frustration or exhaustion.
Method 4. The reification of humans as separate from not just monkeys but the rest of the living world. The special pleading for special descriptions that frame humans as the chosen ones.
...such that the same process of making new individuals, common to humans and asparagus - an observation I chose because it seems superficially silly (it could have been spinach) – requires its own description, one that accounts for gender identity.
In the Scopes trial, which saw discussion of whether Eve was actually created from Adam’s rib and ruminations on where Cain got his wife, Scopes was defended by a legal group who had begun scouting for a test case subject as soon as the Tennessee ban was enacted.
This legal group advocated for:

“Freedom of speech for ideas from the most extreme left such as anarchists and socialists, to the most extreme right including the Ku Klux Klan, Henry Ford, and others who would now be considered more toward the Fascist end of the spectrum."
The legal group so keen to defend the right to speak the truth, in this case a fundamental, observable scientific truth?

The American Civil Liberties Union

A group whose modern day social media presence promotes nonsense like:
“The notion of biological sex was developed for the exclusive purpose of being weaponized against people.”
“Sex and gender are different words for the same thing [that is] a set of politically and socially contingent notions of embodied and expressed identity.”
The ACLU have fought against many US laws preventing the teaching of evolution.

I cannot process the irony of a group historically and consistently prepared to robustly defend the truth of evolution while denying one of the most important biological foundations of evolution.
How do we fight this current craze of sex denialism?

A major blow for creationism teaching was delivered in 1986 while the US Supreme Court were considering a Louisiana state law requiring creationism to be taught alongside evolution.
The Louisiana law was struck down, in part influenced by the expert opinions of scientists who put aside their individual and “often violent” differences on Theory X and Experiment Y, to present a unified defence of scientific truth over religious belief.
76 Nobel laureates, 17 state academies of science and a handful of scientific organisations all got behind this single cause, and made a very real change.
Support for creationism has slowly ebbed away and the US is in a much more sensible position these days, although I still meet the occasional student from a Southern state who didn’t learn about evolution until college.
Sadly, one of the Nobel laureates has highlighted how unusual this collective response was and that he could not imagine any other issue that would receive the same groundswell of community support.
Although he forged his career listening out for the Big Bang, so maybe I need to go through the list and find the biologists.
Part of the problem petitioning biologists to speak out is not necessarily fear of being cancelled or whatever, but simple lack of awareness of the issue, or incredulity that it is being taken remotely seriously.
I’ve been bemoaning efforts to find a citation for the statement, “there are two sexes, male and female”. A colleague laughed that this would require a citation, to check textbooks, then realised that this statement is so simple that it would not even be included in a textbook.
And he’s right.

I can find chapters in textbooks and hundreds of academic papers dedicated to how males and females are made, how they develop, how they differ, yet very few that feel the need to preface any of this with the statement, “there are two sexes, male and female”
It is apparently something that biologists do not think needs to be said.
But of course, I think they are wrong, and that we live in a time where it does need to be said, where some aspects of society are being restructured around a scientific untruth, and where females will suffer.
Without recognition of, and language to describe, our anatomy (and the mostly uninvited experiences that stem from that anatomy), we can neither detect nor measure things like rates of violence against women, the medical and social experiences of women and girls.
And, as for creationism, the reality of sex perhaps needs to be said by those with scientific authority, in unambiguous terms.
Otherwise, we are living in a society that tolerates nonsense like there is no such thing as male or female, that differences evident to our own eyes are not real...
...that anatomies readily observable and existing in monkey and man alike do not actually exist.

I’m sure this last assertion has the full support of the creationist community.
And perhaps, as for creationism, a true tipping point will be tested when it is our children being taught these scientific untruths, or worse, when it is illegal to say different.
At the end of his trial, the only words Scopes uttered in court were these:
“Your honor, I feel that I have been convicted of violating an unjust statute. I will continue [..] to oppose this law in any way I can.

Any other action would be in violation of my ideal of academic freedom—that is, to teach the truth as guaranteed in our constitution [..]"
I do not exaggerate when I say we are dealing with a new type of religion, a new form of creationism, and a new assault on scientific truth. I also do not exaggerate when I say it may take a high profile court case to rebalance the public discourse around sex.
Two predictions: 1. It will not be defended by the ACLU, and 2. With recent proposals on hate speech, it will probably involve a Scottish John Scopes, who finds themself in front of a judge for the seditious crime of discussing the sex life of asparagus at their dinner table.
This tweet should be in the past tense. Gish died in 2013.

Eugenie Scott (NCSE) describes the GG: "where the creationist is allowed to run on for 45 minutes or an hour, spewing forth torrents of error that the evolutionist hasn't a prayer of refuting in the format of a debate".

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More from @FondOfBeetles

Jul 21
I recently spoke at the 2026 International Working Group (IWG) on Women and Sport.

Here are my slides. Image
Sport seeks to identify and reward talent.

We want to find the best swimmers and the best boxers. Athletes with the physicality, skill and mental strength to win.

And we identify and reward talent by measuring performance.

But performance is an output, and not just of talent. Image
Nurturing matters. Environment matters. Having an athletic parent matters.

Nurture can obscure talent.

But differential nurture is, at least in principle, fixable. Image
Read 22 tweets
Jul 20
A thread on PMDS 👀

Persistent Müllerian Duct Syndrome is a DSD that occurs in 46,XY males with normal testes and normal virilisation, who also retain Müllerian structures (uterus, cervix, fallopian tubes, upper vagina) that should have degenerated in utero.
How does it happen?

Early in development, every fetus has two duct systems: the paramesonephric/Müllerian (female) and mesonephric/Wolffian (male).

(The formal names will become relevant later).
In XY babies, carrying the “make male” SRY gene, testes are made on schedule.

These testes make testosterone that promotes development of the Wolffian ducts, because testes will need an epididymis, vas deferens and seminal glands to do their fathering job.

The Selfish Testes. 🤣
Read 15 tweets
Jul 13
We wrote to Amnesty @amnesty @AmnestyUK about their reports containing defamatory slurs against Sex Matters and others.
So did For Women Scotland. @ForWomenScot
@ForWomenScot So did LGB Alliance @AllianceLGB
Read 21 tweets
May 13
On hantavirus #ANDV #hantavirus

I think the Andes hantavirus data is being misread right now.

Claims are circulating that the evidence doesn’t seem to support.

I want to walk through them carefully.
The 40% fatality figure: an artefact of who gets counted.

The 40% case fatality rate (CFR) figure comes specifically from hantavirus pulmonary syndrome (HPS), an outcome in a subset of hanta infections.

This is the severe cardiopulmonary presentation. It excludes subclinical infections that resolved without anyone noticing more than “a touch of flu”.

In Jujuy Province, Argentina, the seroprevalence (rate at which people have antibodies due to hanta infection) is 6.5%. Hospitalised HPS cases had a CFR of 13.3%, but most patients were described as having a mild clinical course.

Disclaimer: although an Argentine outbreak, this has not been confirmed as ANDV.

The 40% is the fatality rate among people sick enough to be diagnosed and hospitalised.

It is not the infection fatality rate.

These are not the same thing, and conflating them is causing significant confusion.
The true attack rate: barely any data.

The Boat had approximately 180 exposed individuals, and around ten cases have been detected. Three - soon to be four, I predict - have died.

Without antibody analysis of the full cohort, we don’t know how many mild or subclinical infections were missed entirely.
Read 21 tweets
May 7
On Hantavirus: a (non-technical) thread.

Disclaimer: I am a biology PhD, but not virology/epidemiology. Husbandman is a virology PhD. But I’m told I’m good at communicating science, so here’s my take.

#Hantavirus
Humans get hantavirus from rodents who carry it.

Some people went to Argentina birdwatching in a landfill, and were exposed to hantavirus because rodents like landfills.

Looks like one - if not two - people brought the virus onto their cruise boat.
So now we have an isolated boat with an index case: someone who is infected.

That’s not good for the index case. Hantavirus has a high fatality rate, and that’s scary.
Read 20 tweets
Apr 8
A cell layer that has developed to protect your body from the outside doesn’t work like a cell layer that has developed to protect your body from the inside.

The cells lining my vagina are not the same cells, and they don’t have the same function, as the ones wrapping your penis.

There’s a name for what happens when you subject dry-adapted “outside skin” to wet-adapted “inside conditions”.

Further reading: trench foot.
My vagina - “inside skin” - hothouses a healthy microbiome that promotes health and healing, and imparts immune function onto small humans that happen to come out of it.

Yours? Less so.
My vagina is a muscular organ, adapted to my healthy female function of receipt of peen, expelling menstrual products and pushing out small humans.

An inside out penis? Less so.
Read 8 tweets

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