For the longest time, folks believed gender came in a neat little package — just male or female. But human identity is way more colorful than a binary box. The question “How many genders are there?” ...

Female and male brains are very similar, but on the level of molecular mechanisms, clear sex differences emerge, revealing ...

The Vatican has released a document criticizing gender theory, transgender surgery and surrogacy as affronts to human dignity. Dignitas Infinita, Latin for "Infinite Dignity," was released on Monday ...

You would think that people with a history of being discriminated against in the workplace might give those whom they resemble a break. But a growing body of research confirms exactly the opposite: ...

VATICAN CITY (AP) — The Vatican on Monday declared gender-affirming surgery and surrogacy as grave violations of human dignity, putting them on par with abortion and euthanasia as practices that it ...

Heated disagreements about sexuality and gender are front and center in today's culture wars. Evolutionary biologist Nathan H. Lents argues in his new book, The Sexual Evolution: How 500 Million Years ...