Restoring biological reality to science education through bold, visual media. Founded by Zachary Elliott @zaelefty and Cynthia Breheny @PTElephant.
Biology
- Tweets 356
- Following 13
- Followers 4,585
- Likes 11
Our official animated video response to Scientific American's famous article, "Stop Using Phony Science to Justify Transphobia."
2
56
161
9,205
The Paradox Institute has ordered 20,000 professional prints of our "Myths of Gender Affirming Care" pamphlet! 📜
If you or your group are interested in receiving a portion, DM us, and we can ship them to you.
6
11
53
8,242
READ: In this detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding to see if it is safe and healthy for the infant.
Short answer: It's not.
theparadoxinstitute.com/read…
22
50
2,442
When will activists and authors of major publications stop using complex medical conditions such as DSDs in arguments about unrelated identities?
Our response to @sciam's article, "Stop Using Phony Science to Justify Transphobia."
theparadoxinstitute.com/read…
15
49
6,807
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
2
15
48
2,500
Which women's sport do you want to spread awareness about?
We have 20+ designs that aim to draw attention to individual women's sports and highlight the importance of safeguarding their integrity.
theparadoxinstitute.com/stor…
1
8
43
6,739
People often say that "no one is claiming sex is socially constructed."
But this is a foundational premise of gender ideology, and it has a name: strong social constructionism.
theparadoxinstitute.com/read…
2
6
40
2,050
Cross-sex hormone use harms almost every system in the body.
Here is a brief review of the scientific literature.
theparadoxinstitute.com/read…
15
42
2,649
READ: In this detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding to see if it is safe and healthy for the infant.
Short answer: It's not.
theparadoxinstitute.com/read…
7
42
2,039
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
2
13
39
2,764
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
2
12
36
3,195
READ: Origins of Two Sexes
How did the two sexes evolve? Where did they come from, and why are there only two?
theparadoxinstitute.com/read…
2
15
35
3,431
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
1
10
38
2,264
We present our formal, scientific rebuttal to Nature's sex spectrum piece, "Sex Redefined."
theparadoxinstitute.com/read…
14
36
3,208
READ: Karyotypes Are Not Sexes
Activists continue to conflate karyotype (one’s collection of chromosomes) with sex (one’s reproductive role).
Here’s why they are not the same.
theparadoxinstitute.com/read…
2
8
30
1,900
We Play Sports with Our Bodies, Not Identities
In a speech to a local swimming association, former swimmer Cynthia Breheny (@PTElephant) argues for the importance of sex segregation.
1
8
34
3,128
In this new detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding and shows why it is not safe or healthy for the infant.
theparadoxinstitute.com/read…
14
35
2,106
Sex differences in the brain often manifest in unexpected ways.
@NeuroSGS explores how to understand variation in the neuroscience literature.
theparadoxinstitute.com/read…
2
8
30
3,764
"It is a mistake to believe that by taking down one head of gender ideology, you will achieve success.
You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends: legal sex change."
New article by @PTElephant.
theparadoxinstitute.com/read…
2
14
33
1,576
"Because male and female are fundamentally defined by the gametes they produce, understanding the origins of the two sexes means understanding why gametes come in two different sizes—many small motile ones (sperm) and few large sessile ones (eggs)."
theparadoxinstitute.com/read…
1
7
31
1,824
In this new detailed piece, Talia Nava explores how gender activists manipulate scientific evidence.
@shamanspirit13
theparadoxinstitute.com/read…
13
30
2,271
READ: A Scientific Response to SciAm's "Stop Using Phony Science to Justify Transphobia"
theparadoxinstitute.com/read…
1
8
28
2,493
READ: Defining vs Determining Sex
Many often conflate two concepts in biology: how sex is defined versus how sex is determined. Here’s why the difference is important.
theparadoxinstitute.com/read…
1
8
25
2,739
What are ‘sexes’? And what are male and female?
In this comprehensive essay, we’ll use biology literature to explore what sexes ultimately are and how they are universally defined across species.
theparadoxinstitute.com/read…
12
29
1,982
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
8
29
1,804
There are many ways the sexes can be composed across species. But there are only ever two sexes.
Us mammals are gonochoric. We are male or female for life. Gonochorism represents 95% of animal species.
2
25
1,645
Explore our sex development charts, detailing the path of around 20 DSDs.
theparadoxinstitute.com/read…
6
25
2,136
READ: Treating without Transition
After growing up with gender dysphoria, @PTElephant tells the story of her search for alternative therapies without transition.
theparadoxinstitute.com/read…
1
10
24
3,044
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
1
5
27
1,307
We have published a book on debunking the sex spectrum myth!
This one by @zaelefty guides the reader through 10 common sex spectrum arguments and teaches how to respond with evolutionary and developmental biology.
Order it here on Amazon:
amazon.com/Binary-Debunking-…
2
6
27
2,788
The Paradox Institute presents our official action plan to enshrine the definition of sex, uphold the rights of women and girls, and restore biological reality to medicine, education, and parenting.
theparadoxinstitute.com/read…
3
22
148
56,529
"Even if we decide to redefine the words ‘male’ and ‘female’ according to our own idiosyncratic and anthropocentric views, we are still going to need words to describe the two unique reproductive strategies that unite all anisogamous species."
theparadoxinstitute.com/read…
9
25
1,686
What are ‘sexes’? And what are male and female?
In this comprehensive essay, we’ll use biology literature to explore what sexes ultimately are and how they are universally defined across species.
theparadoxinstitute.com/read…
8
23
1,964
READ: Karyotypes Are Not Sexes
Activists continue to conflate karyotype (one’s collection of chromosomes) with sex (one’s reproductive role).
Here’s why they are not the same.
theparadoxinstitute.com/read…
7
22
2,038
READ: A Scientific Response to SciAm's "Stop Using Phony Science to Justify Transphobia"
theparadoxinstitute.com/read…
2
15
26
1,582
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
5
23
2,193
Mammals are gonochorists: our sex is determined in the womb by genetics and fixed for life.
Other species like clownfish are sequential hermaphrodites: they can change sex depending on environmental circumstances.
1
5
25
3,908
The Paradox Institute presents our response to the neuroscience section of @ForrestValkai’s “Sex and Sensibility” video.
Joining us is PhD neuroscience student, Sammy Stagg (@NeuroSGS)!
piped.video/ToTLj56JQY4
1
6
23
2,572
"The male-female dichotomy has evolved independently in nearly all lineages of multicellular organisms."
Kirk, D. (2006). Oogamy: Inventing the sexes. Current Biology, 16(24).
cell.com/current-biology/pdf…
1
2
25
The conflation of karyotypes with sexes is a common occurrence in social activism.
Here's why additional karyotypes do not form additional sexes.
theparadoxinstitute.com/read…
1
5
21
1,518
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
2
6
23
2,105
Some academics are attempting to eliminate sex as a variable in medicine. Scientific research and medical case studies reveal the reasons why this is dangerous.
New piece by @PTElephant and @shamanspirit13.
theparadoxinstitute.com/read…
11
21
1,014
READ: Origins of Two Sexes
How did the two sexes evolve? Where did they come from, and why are there only two?
theparadoxinstitute.com/read…
1
3
21
1,798
Flow charts on sex development: visual tools for mapping out the path of embryonic development for typical males and females and those with DSDs.
theparadoxinstitute.com/blog…
4
25
Here we chart the unique development paths of 20 disorders of sex development in easy to understand visual diagrams.
theparadoxinstitute.com/read…
3
9
24
2,221
Explore our sex development charts, detailing the path of around 20 DSDs.
theparadoxinstitute.com/read…
6
20
2,072
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
9
22
1,882
The conflation of karyotypes with sexes is a common occurrence in social activism.
Here's why additional karyotypes do not form additional sexes.
theparadoxinstitute.com/blog…
7
20
We have surpassed our fundraising goal!
Here's a special thank you video outlining what we've done so far and what we plan to do.
3
3
22
2,145
We present "Sex Biology and the Gish Gallop" our formal, written rebuttal to Forrest Valkai and sex spectrum pseudoscience.
40+ in-text citations from scientific literature.
theparadoxinstitute.com/read…
1
9
21
2,200
ARTICLE: Origins of Two Sexes.
The two sexes are universal across almost all species in the plant and animal kingdoms.
Here is how they evolved.
theparadoxinstitute.com/read…
1
7
19
2,527
READ: Origins of Two Sexes
How did the two sexes evolve? Where did they come from, and why are there only two?
theparadoxinstitute.com/read…
2
4
17
2,456
READ: Lies in Women's Health
The important details of a woman’s menstrual cycle and the effects of the medication given to control it are often obfuscated by doctors and hidden from patients. For @PTElephant, this had dangerous consequences.
theparadoxinstitute.com/read…
1
8
16
640
READ: The "brain sex hypothesis" posits that gender dysphoria is rooted in having a brain that aligns with a different sex.
In part 1 of this new multi-part series, @NeuroSGS begins with an analysis of the BSTc.
theparadoxinstitute.com/read…
2
11
17
2,934
It's the genes within the chromosomes that matter for developing one's sex.
Rare conditions such as "XX male syndrome" reveal the underlying genetic mechanisms that produce the sex binary.
Article by Talia | @shamanspirit13
theparadoxinstitute.com/read…
9
18
1,505
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
2
5
17
723
Our organization will be testifying against two bills that promote "gender-affirming care" in Connecticut.
Here are our written testimonies.
2
5
20
967
View and download the digital pamphlet here.
theparadoxinstitute.com/prin…
3
9
15
1,228
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
4
17
1,599
READ: Lies in Women's Health
The important details of a woman’s menstrual cycle and the effects of the medication given to control it are often obfuscated by doctors and hidden from patients. For @PTElephant, this had dangerous consequences.
theparadoxinstitute.com/read…
3
7
16
2,118
We are starting a fundraising initiative!
We want to raise $3,000 so we can order 20,000 of our professionally printed pamphlets on the myths of gender affirming care.
Share, retweet, and donate here!
donorbox.org/20-000-myths-of…
3
10
16
2,272
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
1
4
14
1,377
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
2
14
711
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
2
4
14
547
The degradation of the Y chromosome follows a long history of sex chromosome turnover. Even if it disappears, males will still be produced. But how?
Evolutionary genetics provides us with answers.
theparadoxinstitute.com/read…
4
15
1,851
READ: Treating without Transition
After growing up with gender dysphoria, @PTElephant tells the story of her search for alternative therapies without transition.
theparadoxinstitute.com/read…
10
15
1,468
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
4
14
975
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
5
16
2,304
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
5
12
579
We're looking for article submissions!
If you have an article on sex differences you'd like us to publish at the Paradox Institute, please fill out our form below.
theparadoxinstitute.com/subm…
1
5
14
1,849
READ: Lies in Women's Health
The important details of a woman’s menstrual cycle and the effects of the medication given to control it are often obfuscated by doctors and hidden from patients. For @PTElephant, this had dangerous consequences.
theparadoxinstitute.com/read…
1
8
14
1,355
Ethics of Gender Affirming Care | Interview
Renowned plastic surgeon and US Navy veteran Dr. Patrick Lappert discusses ethics of cosmetic surgery and gender affirming care with the Paradox Institute's @PTElephant.
piped.video/watch?v=GTN35a8R…
1
5
16
1,136
Explore our sex development charts, detailing the path of around 20 DSDs.
theparadoxinstitute.com/read…
1
11
14
1,932
READ: Karyotypes Are Not Sexes
Activists continue to conflate karyotype (one’s collection of chromosomes) with sex (one’s reproductive role).
Here’s why they are not the same.
theparadoxinstitute.com/read…
3
13
363
We've officially surpassed our goal in just 3 days!
We can now use these funds for transforming the Paradox Institute into a 501(c)(3). This will give us the ability to create biology education material full-time and at a large scale.
donorbox.org/help-paradox-in…
3
1
16
1,101
There Is No Trans Genocide | Audio Essays
piped.video/xLwV2ZcLLAY
4
11
1,511
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
2
9
556
The Paradox Institute presents our feature-length response to @ForrestValkai’s “Sex and Sensibility” video on the biology of sex.
We respond to each of his claims in detail with evolutionary and developmental biology.
piped.video/fEarZFdOdis
3
13
1,272
READ: The "brain sex hypothesis" posits that gender dysphoria is rooted in having a brain that aligns with a different sex.
In part 1 of this new multi-part series, @NeuroSGS begins with an analysis of the BSTc.
theparadoxinstitute.com/read…
3
11
1,447
We need your help!
We need donations to cover setup costs for converting the Paradox Institute into a 501(c)(3). This will allow us to do this work full-time and expand our content into many mediums.
Donate below.
donorbox.org/help-paradox-in…
2
6
13
3,218
READ: Treating without Transition
After growing up with gender dysphoria, @PTElephant tells the story of her search for alternative therapies without transition.
theparadoxinstitute.com/read…
3
12
426
READ: A scientific rebuttal of Nature’s famous piece, “Sex Redefined: The Idea of Two Sexes Is Overly Simplistic.”
theparadoxinstitute.com/read…
3
12
1,328
READ: In this detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding to see if it is safe and healthy for the infant.
Short answer: It's not.
theparadoxinstitute.com/read…
3
12
331
It is a mistake to believe that by taking down one head of gender ideology, you will achieve success. You must strike at the foundation – the heart of the hydra – the fiction upon which the rest depends.
Article by @PTElephant
theparadoxinstitute.com/read…
4
12
617
The degradation of the Y chromosome follows a long history of sex chromosome turnover. Even if it disappears, males will still be produced. But how?
Evolutionary genetics provides us with answers.
theparadoxinstitute.com/read…
1
4
10
2,217
READ: Treating without Transition
After growing up with gender dysphoria, @PTElephant tells the story of her search for alternative therapies without transition.
theparadoxinstitute.com/read…
5
11
453
READ: In this detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding to see if it is safe and healthy for the infant.
Short answer: It's not.
theparadoxinstitute.com/read…
2
8
344
READ: Defining vs Determining Sex
Many often conflate two concepts in biology: how sex is defined versus how sex is determined. Here’s why the difference is important.
theparadoxinstitute.com/read…
7
10
1,550
READ: Complete Androgen Insensitivity Syndrome is a complex developmental disorder and its details are often misunderstood. The biological phenomenon of sex reversal provides insight.
Article by @shamanspirit13.
theparadoxinstitute.com/read…
5
12
365
View the digital pamphlet, with sources, below.
Please consider donating (click Donate on the page). All funds will go towards printing and distribution.
theparadoxinstitute.com/prin…
1
2
11
1,255
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
3
11
490
READ: In this detailed piece, @shamanspirit13 analyzes the literature on artificially-induced male breastfeeding to see if it is safe and healthy for the infant.
Short answer: It's not.
theparadoxinstitute.com/read…
1
7
516
READ: Lies in Women's Health
The important details of a woman’s menstrual cycle and the effects of the medication given to control it are often obfuscated by doctors and hidden from patients. For @PTElephant, this had dangerous consequences.
theparadoxinstitute.com/read…
1
9
807
READ: Defining vs Determining Sex
Many often conflate two concepts in biology: how sex is defined versus how sex is determined. Here’s why the difference is important.
theparadoxinstitute.com/read…
1
3
8
791
READ: Sex Biology and the Gish Gallop
Across six categories of variation used by sex spectrum proponents like Forrest Valkai, the two sexes can be reliably defined. All it takes is an accurate understanding of biology.
theparadoxinstitute.com/read…
1
8
827