A lab study on crickets has revealed sex differences in how the insects direct their nutritional resources to increase ...

Our understanding of female–male power relationships in animals has changed over time. Evolutionary biologists once thought that male mammals held clear-cut power over females. Later, species with ...

Share on Pinterest Ultra-processed foods may contain endocrine disrupters that negatively impact male fertility. New Saetiew/Getty Images Ultra-processed foods can increase the risk of multiple ...

As men get older, changes in sexual health and fertility are often expected. For decades, the usual explanation has been a drop in testosterone or simply the aging process itself.

Right-wingers and gender-critics are hounding the NHS over a diagram showcasing a male pregnancy – except it’s not real. An ...

Discover how gut and seminal microbes hold the key to sperm quality, fertility outcomes, and emerging treatments like ...

We humans love putting things in boxes. Assigning simple categories makes us feel comfortable – but all too often, biology ...

Reddit, Yahoo, Quora, and wikiHow are just some of the major brands on board with the RSL Standard. Reddit, Yahoo, Quora, and wikiHow are just some of the major brands on board with the RSL Standard.

University of Hawaiʻi at Mānoa scientists have uncovered a direct link between a missing Y chromosome gene and male infertility. Their new research reveals that deleting this single gene in mice not ...

Matthew Wosnitzer, MD, is a urologist specializing in male reproductive medicine and surgery at Yale New Haven Health System. Semen is a fluid that carries sperm, or male reproductive cells, out of ...