Articles on Biological sex

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The nonbinary flag, shown here on a pin, represents people who say ‘man’ or ‘woman’ does not describe their sense of self. Abraham Gonzalez Fernandez/Moment via Getty Images

Anti‑trans measures don’t just target transgender men and women – a sociologist explains how ‘male’ or ‘female’ categories miss the mark for nonbinary Americans

The recent spate of executive orders around sex and gender impact nonbinary Americans, as well as trans Americans who identify as a man or a woman.
In small-group, subsistence living, it makes sense for everyone to do lots of jobs. gorodenkoff/iStock via Getty Images Plus

Forget ‘Man the Hunter’ – physiological and archaeological evidence rewrites assumptions about a gendered division of labor in prehistoric times

Female bodies have an advantage in endurance ability that means Paleolithic women likely hunted game, not just gathered plants. The story is written in living and ancient human bodies.
There are many genes involved in shaping not just our biological sex, but also our gender identity. Limor Zellermayer/Unsplash

How genes and evolution shape gender – and transgender – identity

It’s not about trauma or how you were raised: evidence now points to a biological basis for transgender, and to the action of particular genes in that determination.

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