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...
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
I applied to countless jobs.
December 22, 2025 at 4:49 PM
I applied to countless jobs.
I refused to provide them because they were irrelevant to my scientific expertise, violated my moral principles, and were a political litmus test.
I would guess you support affirmative action. Imagine if you had been required to submit documents denouncing AA as part of your application.
I would guess you support affirmative action. Imagine if you had been required to submit documents denouncing AA as part of your application.
December 22, 2025 at 4:48 PM
I refused to provide them because they were irrelevant to my scientific expertise, violated my moral principles, and were a political litmus test.
I would guess you support affirmative action. Imagine if you had been required to submit documents denouncing AA as part of your application.
I would guess you support affirmative action. Imagine if you had been required to submit documents denouncing AA as part of your application.
It is a perfectly valid definition, and the definition of "binary" I use when referring to sex.
December 13, 2025 at 7:47 PM
It is a perfectly valid definition, and the definition of "binary" I use when referring to sex.
No, it's not a "weak binary," it's a binary because there are only two gamete types. The fundamental and universal defining feature of the sexes is having the biological function to produce either sperm or ova. Without a third gamete type, sex is and remains binary.
December 13, 2025 at 7:46 PM
No, it's not a "weak binary," it's a binary because there are only two gamete types. The fundamental and universal defining feature of the sexes is having the biological function to produce either sperm or ova. Without a third gamete type, sex is and remains binary.
The "two things" refers to the two types of gametes—sperm and ova—that are the universal defining feature of the sexes. Sex is binary because there are only two gamete types.
December 13, 2025 at 7:45 PM
The "two things" refers to the two types of gametes—sperm and ova—that are the universal defining feature of the sexes. Sex is binary because there are only two gamete types.
Because the fundamental and universal property of the sexes is having the biologiucal function to produce either sperm or ova. And because there are only two gamete types, there are only two sexes. Therefore sex is "composed of two parts" and can be said to be "binary."
December 13, 2025 at 7:43 PM
Because the fundamental and universal property of the sexes is having the biologiucal function to produce either sperm or ova. And because there are only two gamete types, there are only two sexes. Therefore sex is "composed of two parts" and can be said to be "binary."
That's simply not true. I am using the first definition of "binary" below.
"Relating to, composed of, or involving two things."
"Relating to, composed of, or involving two things."
November 30, 2025 at 1:08 AM
That's simply not true. I am using the first definition of "binary" below.
"Relating to, composed of, or involving two things."
"Relating to, composed of, or involving two things."
People who identify as transgender are still either male or female.
November 28, 2025 at 9:01 PM
People who identify as transgender are still either male or female.
What's the third sex? Without it, there will only be two sexes. And because there are only two sexes, sex is binary.
November 28, 2025 at 9:00 PM
What's the third sex? Without it, there will only be two sexes. And because there are only two sexes, sex is binary.
Sterile people still have a sex, but "sterile" is not itself a kind of sex. You can be a sterile male or female.
November 28, 2025 at 8:59 PM
Sterile people still have a sex, but "sterile" is not itself a kind of sex. You can be a sterile male or female.
"Intersex" and "sterile" are not sexes. Therefore there are still only two sexes—male and female.
November 23, 2025 at 8:25 PM
"Intersex" and "sterile" are not sexes. Therefore there are still only two sexes—male and female.
"Sexless" isn't a sex. It is, by definition, the absence of having a sex. Thus there are still only two sexes—male and female.
November 23, 2025 at 8:21 PM
"Sexless" isn't a sex. It is, by definition, the absence of having a sex. Thus there are still only two sexes—male and female.
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.
...or binary compounds. Sex is binary in the sense that it is composed of two and only two parts. "Sex is binary" is a synonym for "there are only two sexes." It is totally compatible with organisms not having a sex or organisms like garden snails that are both sexes.
July 21, 2025 at 8:20 PM
...or binary compounds. Sex is binary in the sense that it is composed of two and only two parts. "Sex is binary" is a synonym for "there are only two sexes." It is totally compatible with organisms not having a sex or organisms like garden snails that are both sexes.
Gametes define the sexes. That is absolutely fundamental. And there is more than one definition of "binary." It's not like computer code where there is only 0s and 1s. Another definition is "composed of two parts." We use this definition when we refer to things like binary star systems...
July 21, 2025 at 8:18 PM
Gametes define the sexes. That is absolutely fundamental. And there is more than one definition of "binary." It's not like computer code where there is only 0s and 1s. Another definition is "composed of two parts." We use this definition when we refer to things like binary star systems...
Pretty typical response.
July 21, 2025 at 7:24 PM
Pretty typical response.
But sex ambiguity is not a third sex or evidence against the binary nature of sex. And most people, as I said, are clearly either male or female. The existence of ambiguous cases does not mean everyone is ambiguous or that sex is a social construct.
July 21, 2025 at 6:30 PM
But sex ambiguity is not a third sex or evidence against the binary nature of sex. And most people, as I said, are clearly either male or female. The existence of ambiguous cases does not mean everyone is ambiguous or that sex is a social construct.