Genes associated with male reproductive biology appear to be under relaxed selective constraint in a primate species with low sperm competition.

My guest this week believes that our problems today can be traced back to the sexual revolution. She argues that it reset ...

Antenatal balanced energy-protein (BEP) dietary supplementation is a WHO recommendation in undernourished settings, but ...

Clinical data reveals male factors contribute to half of all infertility cases, shifting the focus toward earlier ...

Males of the species Drosophila melanogaster pack thousands of almost two-millimeter-long sperm cells into significantly smaller storage organs. A new study reveals how they move in an orderly manner ...

Order slices, fold them in half, flirt with male model, hope it makes your boyfriend jealous. By Hayley Krischer “I have someone I want you to meet,” my mother said. “He’s a male model. His name is ...

Nicholas Galitzine, currently gracing theaters in the lead role of He-Man in Masters of the Universe, has landed his next acting role. Subscribe to our newsletter for a refreshing cocktail (or ...

Aw, nuts. If you've noticed your balls have gotten smaller, it could be a sign of an underlying health condition. Before jumping to get scrotal filler to plump things up, it's best to get to the ...

Taxidermied, locked behind plexiglass and spinning slowly on a wooden dais in the National Museum of Scotland in Edinburgh, UK, the world’s most famous ewe remains a public spectacle three decades ...

Explore the evolving landscape of male contraception, including novel nonhormonal pills and injectable hydrogels in clinical ...

Depending on the type of intersex variation someone has, it could alter their chromosome makeup, genital appearance, hormonal balance, and more. Share on Pinterest Maskot/Getty Images We’re born with ...

Androgens like testosterone are male hormones that help regulate sex characteristics in the body. Everyone has androgens, but those born with male sex traits typically have higher levels. Here’s what ...