Researchers show maternal iron levels can override genetic sex determination in mice.

A January executive order by President Donald Trump designates people as female if they make the “large” reproductive cell (the egg) and male if they make the ...

Fremont standout Mia Clemence headlines this year’s Muskegon-area Sports Hall of Fame’s Female Scholar-Athlete of the Year ...

A surprising finding from researchers in Japan has shown how an environmental factor can influence the development of sex organs in unborn mice. The discovery challenges the longstanding belief that ...

Imagine a future where a diagnosis of untreatable male infertility is no longer the end of the road—because science has found ...

The average penis has grown nearly 10% from 5.17 inches to 5.63 between 2022 and 2024 in the UK, according to diabetes.co.

A new Oxford method retrieves proteins from ancient soft tissue, uncovering brain health markers and expanding knowledge of ...

Women are diagnosed with four years older than men on average, across hundreds of conditions, though men with depression are ...

This issue is about biology, not bigotry. Male puberty confers lasting physical advantages that even hormone therapy does not ...

ANALYSIS: Eoghan Cunnane is leading a team of researchers to produce human sperm from lab-engineered testicular tissue ...

Ginger cats have always stood out, not just because of their bright orange coats, but because they are mostly male. For years ...