Beyond X&Y
@beyondxandy.bsky.social
🧬 Biomed experts mobilizing scientists to fight transphobia through education 🏳️⚧️
🌐 beyondxandy.org
✉️ info@beyondxandy.org
🌐 beyondxandy.org
✉️ info@beyondxandy.org
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Beyond X&Y
@beyondxandy.bsky.social
· Sep 23
It's the scientific community's duty to fight misinformation, bioessentialism, and eugenics
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
Reposted by Beyond X&Y
A coalition of 19 states and DC have filed a lawsuit challenging the Kennedy declaration seeking to ban gender affirming care for trans youth by fiat by creating a federal "standard of care" based on pure pseudoscience.
ag.ny.gov/press-releas...
ag.ny.gov/press-releas...
Attorney General James Leads Lawsuit Challenging Federal Attack on Gender-Affirming Care
NEW YORK – New York Attorney General Letitia James today led a coalition of 18 other states and the District of Columbia in filing a lawsuit to stop the U.S
ag.ny.gov
December 24, 2025 at 4:01 AM
A coalition of 19 states and DC have filed a lawsuit challenging the Kennedy declaration seeking to ban gender affirming care for trans youth by fiat by creating a federal "standard of care" based on pure pseudoscience.
ag.ny.gov/press-releas...
ag.ny.gov/press-releas...
Reposted by Beyond X&Y
The FDA prioritized attacking trans chest binders, which pose little risk, while allowing most pharmacogenomic DTC tests to market without being labeled as medical devices
This is why biotech isn't fighting this government. They'll make more money with lax regulations
This is why biotech isn't fighting this government. They'll make more money with lax regulations
23 Dec 2025 @rikiwilchins.bsky.social -- GenderBender, 1 of 11 companies FDA is trying to force to register chest binders as "medical devices," fires back: "Chest binders aren't a medical device in the same way that scissors used to give someone a gender-affirming haircut aren't a medical device."
Chest binder vendors respond to 'absurd' FDA warning letter: 'Clearly discrimination'
The FDA warned companies selling chest binders to register their products as medical devices. Here's how they're responding.
www.advocate.com
December 23, 2025 at 4:29 PM
The FDA prioritized attacking trans chest binders, which pose little risk, while allowing most pharmacogenomic DTC tests to market without being labeled as medical devices
This is why biotech isn't fighting this government. They'll make more money with lax regulations
This is why biotech isn't fighting this government. They'll make more money with lax regulations
Reposted by Beyond X&Y
Mushroom evolutionary biologist here.
We’re well aware of the fact that sex and gender isn’t a binary. Happy to talk about the fungus with 28,000 distinct sexual identities anytime.
Trans rights are human rights! 🏳️⚧️
We’re well aware of the fact that sex and gender isn’t a binary. Happy to talk about the fungus with 28,000 distinct sexual identities anytime.
Trans rights are human rights! 🏳️⚧️
December 22, 2025 at 4:09 PM
Mushroom evolutionary biologist here.
We’re well aware of the fact that sex and gender isn’t a binary. Happy to talk about the fungus with 28,000 distinct sexual identities anytime.
Trans rights are human rights! 🏳️⚧️
We’re well aware of the fact that sex and gender isn’t a binary. Happy to talk about the fungus with 28,000 distinct sexual identities anytime.
Trans rights are human rights! 🏳️⚧️
Reposted by Beyond X&Y
“All evolutionary biologists know that variation itself is life’s only irreducible essence”—Gould
Evolutionary biology is the study of how complicated and diverse life can be; the field has its jerks, but a good evolutionary biologist learns pretty fast that life doesn’t like boundaries or binaries
Evolutionary biology is the study of how complicated and diverse life can be; the field has its jerks, but a good evolutionary biologist learns pretty fast that life doesn’t like boundaries or binaries
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
And that’s a follow.
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
December 22, 2025 at 5:32 PM
“All evolutionary biologists know that variation itself is life’s only irreducible essence”—Gould
Evolutionary biology is the study of how complicated and diverse life can be; the field has its jerks, but a good evolutionary biologist learns pretty fast that life doesn’t like boundaries or binaries
Evolutionary biology is the study of how complicated and diverse life can be; the field has its jerks, but a good evolutionary biologist learns pretty fast that life doesn’t like boundaries or binaries
Reposted by Beyond X&Y
I consider myself a biological anthropologist who sometimes has to engage with evolutionary biologists.
In EB, too often the conclusions are about how biology determines culture. In BA, we learn that culture & biology are interrelated, affecting each other but not determining (that’s too narrow).
In EB, too often the conclusions are about how biology determines culture. In BA, we learn that culture & biology are interrelated, affecting each other but not determining (that’s too narrow).
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
And that’s a follow.
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
December 22, 2025 at 5:41 PM
I consider myself a biological anthropologist who sometimes has to engage with evolutionary biologists.
In EB, too often the conclusions are about how biology determines culture. In BA, we learn that culture & biology are interrelated, affecting each other but not determining (that’s too narrow).
In EB, too often the conclusions are about how biology determines culture. In BA, we learn that culture & biology are interrelated, affecting each other but not determining (that’s too narrow).
Reposted by Beyond X&Y
My training was very firmly in an evolution oriented EEB dept. As a visibly GNC queer, I have actually found EEB spaces to be a more welcoming home than neuroscience. Working on animal sexual behavior from an EEB perspective really highlights the sheer diversity of ways that sex can be organized.
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
And that’s a follow.
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
December 22, 2025 at 7:27 PM
My training was very firmly in an evolution oriented EEB dept. As a visibly GNC queer, I have actually found EEB spaces to be a more welcoming home than neuroscience. Working on animal sexual behavior from an EEB perspective really highlights the sheer diversity of ways that sex can be organized.
Reposted by Beyond X&Y
Rather excellent thread
Let’s be very clear here. This is exactly why it was exceptionally unwise of the Supreme Court to wade into this space using ‘biological sex’ as a defining concept, because as soon as you talk to actual biologists the simple binary unravels. Not a stable basis for law.
Let’s be very clear here. This is exactly why it was exceptionally unwise of the Supreme Court to wade into this space using ‘biological sex’ as a defining concept, because as soon as you talk to actual biologists the simple binary unravels. Not a stable basis for law.
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
And that’s a follow.
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
December 22, 2025 at 8:17 PM
Rather excellent thread
Let’s be very clear here. This is exactly why it was exceptionally unwise of the Supreme Court to wade into this space using ‘biological sex’ as a defining concept, because as soon as you talk to actual biologists the simple binary unravels. Not a stable basis for law.
Let’s be very clear here. This is exactly why it was exceptionally unwise of the Supreme Court to wade into this space using ‘biological sex’ as a defining concept, because as soon as you talk to actual biologists the simple binary unravels. Not a stable basis for law.
Reposted by Beyond X&Y
Ecologist here, we know plenty about the diversity of life, and as the @britishecologicalsociety.org we actively support the inclusion of trans people alongside all the many ways of simply being human. Dawkins does not represent or speak for us.
Resources for LGBTQIA+ ecologists - British Ecological Society
A collection of websites and literature for LGBTQIA+ ecologists and allies.
www.britishecologicalsociety.org
December 22, 2025 at 8:12 PM
Ecologist here, we know plenty about the diversity of life, and as the @britishecologicalsociety.org we actively support the inclusion of trans people alongside all the many ways of simply being human. Dawkins does not represent or speak for us.
Reposted by Beyond X&Y
Actually see the opposite honestly been told time and time again that diversity in gene expression and behavior is an advantage in species not a take away. I don‘t think you understand evolution and genetics enough if you’re transphobic and homophobic
December 22, 2025 at 5:31 PM
Actually see the opposite honestly been told time and time again that diversity in gene expression and behavior is an advantage in species not a take away. I don‘t think you understand evolution and genetics enough if you’re transphobic and homophobic
Reposted by Beyond X&Y
Geneticist had the best response to an office pool about whether my kid would be a boy or girl: “Probably”.
December 22, 2025 at 3:21 PM
Geneticist had the best response to an office pool about whether my kid would be a boy or girl: “Probably”.
Reposted by Beyond X&Y
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
And that’s a follow.
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
Actually I do have a question if you have a sec.
Without exception the most transphobic group of scientists I’ve run into online are evolutionary biologists. Every single one of them has expressed the same opinion: transness cannot be anything other than social contagion. Why?
December 22, 2025 at 3:18 PM
Hey, fellow evolutionary biologists:
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
If you support trans rights, like, comment, or repost this. I want to show that transphobes like Richard Dawkins are a loud minority that does not represent our community
Reposted by Beyond X&Y
Seems like a good time to reshare this resource: www.scientificamerican.com/article/beyo...
Beyond XX and XY: The Extraordinary Complexity of Sex Determination
A host of factors figure into whether someone is female, male or somewhere in between
www.scientificamerican.com
December 18, 2025 at 10:23 PM
Seems like a good time to reshare this resource: www.scientificamerican.com/article/beyo...
Reposted by Beyond X&Y
Transphobia hurts everyone by enforcing binaries that aren't rooted in biology
October 29, 2025 at 4:18 PM
Transphobia hurts everyone by enforcing binaries that aren't rooted in biology
Reposted by Beyond X&Y
We are compiling a list of scientific societies with public statements denouncing bioessentialist claims that sex and gender are strict binaries
If your organization has publicly shown support for transgender, nonbinary, and intersex people, please let us know!
Below is a thread of statements:
If your organization has publicly shown support for transgender, nonbinary, and intersex people, please let us know!
Below is a thread of statements:
October 20, 2025 at 8:33 PM
We are compiling a list of scientific societies with public statements denouncing bioessentialist claims that sex and gender are strict binaries
If your organization has publicly shown support for transgender, nonbinary, and intersex people, please let us know!
Below is a thread of statements:
If your organization has publicly shown support for transgender, nonbinary, and intersex people, please let us know!
Below is a thread of statements:
Reposted by Beyond X&Y
It's the scientific community's duty to fight misinformation, bioessentialism, and eugenics
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
September 23, 2025 at 8:52 PM
It's the scientific community's duty to fight misinformation, bioessentialism, and eugenics
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
That's why we're launching Beyond X&Y, an educational campaign combating the rise of unscientific political propaganda used to attack trans and intersex people
Subscribe to our newsletter at beyondxandy.org
Seems like a good time to reshare this resource: www.scientificamerican.com/article/beyo...
Beyond XX and XY: The Extraordinary Complexity of Sex Determination
A host of factors figure into whether someone is female, male or somewhere in between
www.scientificamerican.com
December 18, 2025 at 10:23 PM
Seems like a good time to reshare this resource: www.scientificamerican.com/article/beyo...
Reposted by Beyond X&Y
Great thread summarizing the "Genes, Traits, and Identities: Navigating Sex, Gender, and Sexuality in Modern Research" session at #ASHG25.
"Genes, Traits, and Identities: Navigating Sex, Gender, and Sexuality in Modern Research"
Frequently the trans and intersex communities are excluded from population-based genomics studies because they cannot be put in a neat box. But sex is a complex trait, like many other traits we study #ASHG25
Frequently the trans and intersex communities are excluded from population-based genomics studies because they cannot be put in a neat box. But sex is a complex trait, like many other traits we study #ASHG25
October 16, 2025 at 9:15 PM
Great thread summarizing the "Genes, Traits, and Identities: Navigating Sex, Gender, and Sexuality in Modern Research" session at #ASHG25.
Reposted by Beyond X&Y
I hate gay Halloween, what do you mean you're a transgenic mouse who just lost their research funding?
They spent 8 million dollars on making mice transgender???
October 27, 2025 at 6:41 PM
I hate gay Halloween, what do you mean you're a transgenic mouse who just lost their research funding?
Reposted by Beyond X&Y
If any journalist wants to talk to a trans man with a PhD in Human Genomics who was trained in labs that studied the evolution of sex, I'm right here
Or just keep platforming Republicans who have a 5th grade understanding of biology so they get more trans people killed, sure 🤷🏻♂️
Or just keep platforming Republicans who have a 5th grade understanding of biology so they get more trans people killed, sure 🤷🏻♂️
December 18, 2025 at 5:27 PM
If any journalist wants to talk to a trans man with a PhD in Human Genomics who was trained in labs that studied the evolution of sex, I'm right here
Or just keep platforming Republicans who have a 5th grade understanding of biology so they get more trans people killed, sure 🤷🏻♂️
Or just keep platforming Republicans who have a 5th grade understanding of biology so they get more trans people killed, sure 🤷🏻♂️
Reposted by Beyond X&Y
Our allies need to catch the fuck up and shouldn't be afforded this level of careful explanation but this bugs the shit out of me so here we go:
Biological sex, as an immutable binary, IS THE ACTUAL PSEUDO-SCIENCE HERE.
Y'all are getting played by language that just SOUNDS SMART to your ears.
Biological sex, as an immutable binary, IS THE ACTUAL PSEUDO-SCIENCE HERE.
Y'all are getting played by language that just SOUNDS SMART to your ears.
It is 2025. The EHRC in the UK keeps trying to materialize a trans bathroom ban out of a muddled UKSC opinion third-sexing all trans people. A bill to criminalise those who provide trans minors with transition care passed in the US House of Representatives.
And cis "allies" still think this helps.
And cis "allies" still think this helps.
December 18, 2025 at 7:22 PM
Our allies need to catch the fuck up and shouldn't be afforded this level of careful explanation but this bugs the shit out of me so here we go:
Biological sex, as an immutable binary, IS THE ACTUAL PSEUDO-SCIENCE HERE.
Y'all are getting played by language that just SOUNDS SMART to your ears.
Biological sex, as an immutable binary, IS THE ACTUAL PSEUDO-SCIENCE HERE.
Y'all are getting played by language that just SOUNDS SMART to your ears.
This snake oil salesman is reality rejecting
There's a reason why all major medical organizations disagree with him: Because transness is innate, and nearly a century of evidence clearly shows gender affirming care saves lives
He has the blood of trans kids on his hands for these lies
There's a reason why all major medical organizations disagree with him: Because transness is innate, and nearly a century of evidence clearly shows gender affirming care saves lives
He has the blood of trans kids on his hands for these lies
Dr Oz: "We're announcing a notice of proposed rule-making that ends -- ends -- taxpayer funding of sex rejecting procedures for children in Medicaid and CHIP, full stop.
December 18, 2025 at 5:16 PM
This snake oil salesman is reality rejecting
There's a reason why all major medical organizations disagree with him: Because transness is innate, and nearly a century of evidence clearly shows gender affirming care saves lives
He has the blood of trans kids on his hands for these lies
There's a reason why all major medical organizations disagree with him: Because transness is innate, and nearly a century of evidence clearly shows gender affirming care saves lives
He has the blood of trans kids on his hands for these lies
Reposted by Beyond X&Y
Reposted by Beyond X&Y
Key words: "It is the policy of the state"
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
6. The bill also goes further by codifying the state’s viewpoint toward trans people into law. It declares that “it is the policy of this state that a person’s sex is an immutable biological trait and that it is false to ascribe to a person a pronoun that does not correspond to such person’s sex."
December 16, 2025 at 7:22 PM
Key words: "It is the policy of the state"
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
Key words: "It is the policy of the state"
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
6. The bill also goes further by codifying the state’s viewpoint toward trans people into law. It declares that “it is the policy of this state that a person’s sex is an immutable biological trait and that it is false to ascribe to a person a pronoun that does not correspond to such person’s sex."
December 16, 2025 at 7:22 PM
Key words: "It is the policy of the state"
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
That policy is a lie. It denies the reality of hundreds of thousands of trans people who have demonstrably changed their sex with hormones
Sex is mutable *because of how biology works*, regardless of propaganda from a fascist government
Reposted by Beyond X&Y
"Sex is not one single, simple, uniform biological reality. Thus, biology cannot be invoked as a basis for such in legal terms."
Augustin Fuentes.
Augustin Fuentes.
Politics, Not Biology, Is Driving Legal Efforts to Classify Sex
Sex is not one single, simple, uniform biological reality, so biology cannot be invoked as a basis for “immutable” legal classifications
www.scientificamerican.com
December 16, 2025 at 4:58 PM
"Sex is not one single, simple, uniform biological reality. Thus, biology cannot be invoked as a basis for such in legal terms."
Augustin Fuentes.
Augustin Fuentes.