
VIDEOS ON SEX DIFFERENCES
In illustrated animated videos, video essays, and interviews, we explore topics in the biology of sex while countering the denial of biology in the mainstream culture.
Our videos include the evolution of male and female, the developmental biology of the two sexes in the womb, and the analysis of sex differences in medicine, sports, and more.

Do We All Begin Female?

Do Fungi Have Thousands of Sexes?

Can Humans Change Sex?

Defining Sex vs Determining Sex

We Play Sports With Our Bodies, Not Identities

What Are Sexes?

Origins of Two Sexes

Chromosomes Are Not Sexes

Biology of DSDs: Ovotesticular DSD

Biology of DSDs: 5-ARD

Biology of DSDs: Swyer Syndrome

Biology of DSDs: CAIS

Biology of DSDs: Congenital Adrenal Hyperplasia

Biology of DSDs: MRKH

Biology of DSDs: Turner Syndrome

Biology of DSDs: Klinefelter Syndrome

Biology of DSDs: Introduction

Testosterone and Beyond: The Male Advantage

A Response to SciAm's "Stop Using Phony Science"

Are There More Than Two Sexes

Why Sex Matters

Why Sex Is Binary

The Intersex Gambit

Sex vs Gender

Is Sex Bimodal?

The Denial of Biological Sex

From Humans to Asparagus: Females are Females

Is Intersex a Third Sex?

Biology of Sex Differences: Detailed Analysis of Forrest Valkai's Sex and Sensibility

Neuroscience of Sex Differences: Responding to Forrest Valkai's Sex and Sensibility

Ethics of Gender Affirming Care with Dr. Patrick Lappert

The Evolution and Manipulation of Language with Dr. Alaric Naudé

John Money, Puberty Blockers, and Pediatric Transition with Dr. Quentin Van Meter

Psychology of AGP, Dysphoria, and Dissociation with Dr. Joseph Burgo

The Erosion of Medical Ethics with Jennifer Lahl

Sex Biology and the Nuances of Gender Roles with Dr Heather Heying

Empowering Parents to Protect their Kids with Alvin Lui

Sports Physiology and the Male Advantage with Greg Brown
