Colin Wright
@drcolinwright.bsky.social
Evolutionary Biology PhD | CEO/Editor-in-Chief Reality's Last Stand | Fellow at the Manhattan Institute | Advisor at Atheists for Liberty | Whiskey and cats.
Email: cwright1859 at gmail
Email: cwright1859 at gmail
Pinned
Colin Wright
@drcolinwright.bsky.social
· Oct 30
Opinion | Evidence Backs the Transgender Social-Contagion Hypothesis
The share of young people claiming another ‘gender identity’ exploded. Now surveys show it is receding.
www.wsj.com
Was the more than 20-fold rise in trans identities since 2010 the result of people finally feeling free to express their authentic selves? Or was it a social contagion?
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
Reposted by Colin Wright
In a new #Viewpoint we argue that the binary definition of #BiologicalSex based on gamete size is a scientifically robust framework that is entirely compatible with the diversity of sexual phenotypes and human gender identities.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Biological Sex Is Binary and Rooted in Anisogamy
Drawing on empirical evidence and evolutionary theory, we argue that biological sex is most coherently defined as a binary classification of reproductive strategies rooted in anisogamy (the productio....
onlinelibrary.wiley.com
July 11, 2026 at 6:05 AM
In a new #Viewpoint we argue that the binary definition of #BiologicalSex based on gamete size is a scientifically robust framework that is entirely compatible with the diversity of sexual phenotypes and human gender identities.
onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Colin Wright
One Reality, Two Sexes, and Endless Debates: A Conversation with Colin Wright
open.substack.com/pub/colinwri...
open.substack.com/pub/colinwri...
One Reality, Two Sexes, and Endless Debates: A Conversation with Colin Wright
Evolutionary biologist Colin Wright discusses the science of biological sex and why a simple biological fact has become one of the most contentious issues of our time—including among skeptics.
open.substack.com
April 10, 2026 at 3:48 AM
One Reality, Two Sexes, and Endless Debates: A Conversation with Colin Wright
open.substack.com/pub/colinwri...
open.substack.com/pub/colinwri...
The war against biology is far from over. A new peer-reviewed paper claims that teaching students "accurate" biology about sex is more inclusive and makes students enjoy class more.
But what they call "accurate" biology is actually pseudoscience.
Read my latest below.
But what they call "accurate" biology is actually pseudoscience.
Read my latest below.
The War on Biology Is Far From Over
Activists are flooding the zone with pseudoscience on sex because too much of their politics now depends on it.
www.realityslaststand.com
April 25, 2026 at 1:01 AM
The war against biology is far from over. A new peer-reviewed paper claims that teaching students "accurate" biology about sex is more inclusive and makes students enjoy class more.
But what they call "accurate" biology is actually pseudoscience.
Read my latest below.
But what they call "accurate" biology is actually pseudoscience.
Read my latest below.
Reposted by Colin Wright
Sharing this masterpiece from Colin Wright. @colinwright.skystack.xyz
#SexBinary
#Science
#actualScience
#Biology
link.springer.com/article/10.1...
#SexBinary
#Science
#actualScience
#Biology
link.springer.com/article/10.1...
Response to Mahr’s (2026) Response to Wright’s (2025) “Why There are Exactly Two Sexes” - Archives of Sexual Behavior
Archives of Sexual Behavior -
link.springer.com
March 27, 2026 at 12:23 AM
Sharing this masterpiece from Colin Wright. @colinwright.skystack.xyz
#SexBinary
#Science
#actualScience
#Biology
link.springer.com/article/10.1...
#SexBinary
#Science
#actualScience
#Biology
link.springer.com/article/10.1...
Reposted by Colin Wright
♂️♀️🔬 2025 schrieb Colin Wright im Fachjournal "Archives of Sexual Behavior" einen Kommentar, der zu einem Prüfstein in Debatten über das biologische #Geschlecht wurde.
Wir sprachen mit Colin über #Wissenschaft, berufliche Konsequenzen und unterschiedliche Perspektiven.
www.gwup.org/skeptiker-ar...
Wir sprachen mit Colin über #Wissenschaft, berufliche Konsequenzen und unterschiedliche Perspektiven.
www.gwup.org/skeptiker-ar...
March 27, 2026 at 5:17 PM
♂️♀️🔬 2025 schrieb Colin Wright im Fachjournal "Archives of Sexual Behavior" einen Kommentar, der zu einem Prüfstein in Debatten über das biologische #Geschlecht wurde.
Wir sprachen mit Colin über #Wissenschaft, berufliche Konsequenzen und unterschiedliche Perspektiven.
www.gwup.org/skeptiker-ar...
Wir sprachen mit Colin über #Wissenschaft, berufliche Konsequenzen und unterschiedliche Perspektiven.
www.gwup.org/skeptiker-ar...
What is a woman?
January 12, 2026 at 6:16 PM
What is a woman?
Reposted by Colin Wright
What’s Wrong With Fucking Your First Cousin? • A Conversation With Evolutionary Biologist Colin Wright
What’s Wrong With Fucking Your First Cousin?
A Conversation With Evolutionary Biologist Colin Wright
boghossian.substack.com
December 11, 2025 at 3:49 AM
What’s Wrong With Fucking Your First Cousin? • A Conversation With Evolutionary Biologist Colin Wright
Reposted by Colin Wright
In the Archives of Sexual Behavior, Colin Wright explains why there are only two sexes, and debunks claims that the sexes are more numerous than that or form a spectrum.
whyevolutionistrue.com/2025/11/06/o...
whyevolutionistrue.com/2025/11/06/o...
Once again: Why there are two sexes and no more
In a recent post on his site “Reality’s Last Stand,” Colin Wright reprints an article he published a few months ago in Archives of Sexual behavior, outlining why there are exactly…
whyevolutionistrue.com
November 6, 2025 at 3:57 PM
In the Archives of Sexual Behavior, Colin Wright explains why there are only two sexes, and debunks claims that the sexes are more numerous than that or form a spectrum.
whyevolutionistrue.com/2025/11/06/o...
whyevolutionistrue.com/2025/11/06/o...
Reposted by Colin Wright
Colin Wright calls attention to a new paper arguing that advancing your ideology should take precedence over promulgating empirical truth.
whyevolutionistrue.com/2025/11/04/c...
whyevolutionistrue.com/2025/11/04/c...
November 4, 2025 at 5:04 PM
Colin Wright calls attention to a new paper arguing that advancing your ideology should take precedence over promulgating empirical truth.
whyevolutionistrue.com/2025/11/04/c...
whyevolutionistrue.com/2025/11/04/c...
Reposted by Colin Wright
Was the more than 20-fold rise in trans identities since 2010 the result of people finally feeling free to express their authentic selves? Or was it a social contagion?
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
Opinion | Evidence Backs the Transgender Social-Contagion Hypothesis
The share of young people claiming another ‘gender identity’ exploded. Now surveys show it is receding.
www.wsj.com
October 30, 2025 at 5:19 PM
Was the more than 20-fold rise in trans identities since 2010 the result of people finally feeling free to express their authentic selves? Or was it a social contagion?
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
Was the more than 20-fold rise in trans identities since 2010 the result of people finally feeling free to express their authentic selves? Or was it a social contagion?
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
Opinion | Evidence Backs the Transgender Social-Contagion Hypothesis
The share of young people claiming another ‘gender identity’ exploded. Now surveys show it is receding.
www.wsj.com
October 30, 2025 at 5:19 PM
Was the more than 20-fold rise in trans identities since 2010 the result of people finally feeling free to express their authentic selves? Or was it a social contagion?
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
5 years ago, I and others were canceled for suggesting the latter. New evidence shows we were right.
www.wsj.com/opinion/evid...
This Data Flips the Transgender Bullying Narrative on Its Head
A new Finnish study found that trans-identified adolescents—especially those who identify as “nonbinary”—were more likely to bully others than they were to be bullied.
A new Finnish study found that trans-identified adolescents—especially those who identify as “nonbinary”—were more likely to bully others than they were to be bullied.
This Data Flips the Transgender Bullying Narrative on Its Head
A massive study finds that trans-identifying teens, especially those who identify as ‘nonbinary,’ are more likely to bully others than be bullied.
www.realityslaststand.com
July 26, 2025 at 6:58 PM
This Data Flips the Transgender Bullying Narrative on Its Head
A new Finnish study found that trans-identified adolescents—especially those who identify as “nonbinary”—were more likely to bully others than they were to be bullied.
A new Finnish study found that trans-identified adolescents—especially those who identify as “nonbinary”—were more likely to bully others than they were to be bullied.
Reposted by Colin Wright
The gender book industry is a powerful tool of indoctrination. We need reality-based alternatives.
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
‘Froggy Girl’—One Therapist’s Answer to the Gender Book Industry
Too many books teach kids they were born wrong; mine teaches them to love the body they’re in.
www.realityslaststand.com
July 17, 2025 at 6:19 PM
The gender book industry is a powerful tool of indoctrination. We need reality-based alternatives.
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Reposted by Colin Wright
Today, the U.S. government officially ended its partnership with the Trevor Project.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
Trump Was Right to Defund the Trevor Project
The organization has peddled pseudoscience to vulnerable kids.
www.city-journal.org
July 17, 2025 at 5:15 PM
Today, the U.S. government officially ended its partnership with the Trevor Project.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
The gender book industry is a powerful tool of indoctrination. We need reality-based alternatives.
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
‘Froggy Girl’—One Therapist’s Answer to the Gender Book Industry
Too many books teach kids they were born wrong; mine teaches them to love the body they’re in.
www.realityslaststand.com
July 17, 2025 at 6:19 PM
The gender book industry is a powerful tool of indoctrination. We need reality-based alternatives.
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Pamela Garfield-Jaeger's new book—Froggy Girl—is her answer.
"We can’t control every message children hear, but we can make sure they hear the truth at least once."
Today, the U.S. government officially ended its partnership with the Trevor Project.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
Trump Was Right to Defund the Trevor Project
The organization has peddled pseudoscience to vulnerable kids.
www.city-journal.org
July 17, 2025 at 5:15 PM
Today, the U.S. government officially ended its partnership with the Trevor Project.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
While the left melts down, Brad Polumbo and I highlight a major reason for the decision: the Trevor Project's promotion of harmful gender ideology and sex pseudoscience targeted at vulnerable youth in crisis.
I am all for "all gender" restrooms as long as there are also male- and female-only restrooms as well.
July 13, 2025 at 5:33 PM
I am all for "all gender" restrooms as long as there are also male- and female-only restrooms as well.
Reposted by Colin Wright
Writing for @thebulwark.com, @jilldlawrence.bsky.social argued that the “transgender issue” isn't a distraction for Democrats but a chance to uphold human rights, morality, and science.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
The Bulwark’s Firehose of Lies on Sex and Gender
Jill Lawrence’s latest piece shows how political slogans about “trans rights” collapse under basic facts of biology, law, and evidence-based medicine.
www.realityslaststand.com
July 10, 2025 at 4:37 PM
Writing for @thebulwark.com, @jilldlawrence.bsky.social argued that the “transgender issue” isn't a distraction for Democrats but a chance to uphold human rights, morality, and science.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
Hello @safety.bsky.app. My account has been wrongfully slapped with an "Impersonation" label, and nobody is responding to my appeals. Please remove this label. I can verify my identity any way you would like.
July 10, 2025 at 6:26 PM
Hello @safety.bsky.app. My account has been wrongfully slapped with an "Impersonation" label, and nobody is responding to my appeals. Please remove this label. I can verify my identity any way you would like.
Writing for @thebulwark.com, @jilldlawrence.bsky.social argued that the “transgender issue” isn't a distraction for Democrats but a chance to uphold human rights, morality, and science.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
The Bulwark’s Firehose of Lies on Sex and Gender
Jill Lawrence’s latest piece shows how political slogans about “trans rights” collapse under basic facts of biology, law, and evidence-based medicine.
www.realityslaststand.com
July 10, 2025 at 4:37 PM
Writing for @thebulwark.com, @jilldlawrence.bsky.social argued that the “transgender issue” isn't a distraction for Democrats but a chance to uphold human rights, morality, and science.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
It's shocking a piece so detached from reality could be published to a wide audience without a single fact-check.
Reposted by Colin Wright
The Trump administration is right to withhold funding over Harvard's racist and ideological hiring and admissions policies that violate the CRA.
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
Harvard, Trump, and the Battle Over Bias
Demanding viewpoint affirmative action is not the correct response to Harvard’s longstanding political bias.
www.realityslaststand.com
April 16, 2025 at 9:00 PM
The Trump administration is right to withhold funding over Harvard's racist and ideological hiring and admissions policies that violate the CRA.
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
The Trump administration is right to withhold funding over Harvard's racist and ideological hiring and admissions policies that violate the CRA.
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
Harvard, Trump, and the Battle Over Bias
Demanding viewpoint affirmative action is not the correct response to Harvard’s longstanding political bias.
www.realityslaststand.com
April 16, 2025 at 9:00 PM
The Trump administration is right to withhold funding over Harvard's racist and ideological hiring and admissions policies that violate the CRA.
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
However, demanding ideological “affirmative action” to achieve viewpoint “equity” is the wrong approach.
Read my latest below!
On Day 1, Trump signed an executive order affirming the reality that sex is binary, immutable, and based on gametes—not “gender identity.”
This was needed. However, protecting women’s rights requires not just acknowledging biological reality but also PREVENTING EFFORTS TO HIDE IT.
This was needed. However, protecting women’s rights requires not just acknowledging biological reality but also PREVENTING EFFORTS TO HIDE IT.
Opinion | Trump Can Ban Transgender Birth Certificates
Most states allow natives to alter their recorded sex, an affront against science and a danger to women.
www.wsj.com
February 4, 2025 at 12:34 AM
On Day 1, Trump signed an executive order affirming the reality that sex is binary, immutable, and based on gametes—not “gender identity.”
This was needed. However, protecting women’s rights requires not just acknowledging biological reality but also PREVENTING EFFORTS TO HIDE IT.
This was needed. However, protecting women’s rights requires not just acknowledging biological reality but also PREVENTING EFFORTS TO HIDE IT.
This essay by Michael Bailey on sex differences in sexuality is utterly fascinating and sets the groundwork for his upcoming essays in Reality’s Last Stand that will dive deep into our current scientific understanding autogynephilia.
Sex Differences in Sexuality: A Key to Understanding Autogynephilia
Understanding sexual arousal, sexuality, and the male propensity for paraphilias set the stage for understanding autogynephilia.
www.realityslaststand.com
January 16, 2025 at 7:59 PM
This essay by Michael Bailey on sex differences in sexuality is utterly fascinating and sets the groundwork for his upcoming essays in Reality’s Last Stand that will dive deep into our current scientific understanding autogynephilia.