As the gender furore that engulfed boxing at the 2024 Paris Olympics rumbles on, the International Olympic Committee is weighing reintroducing testing, while several sports have already embraced ...

University of Adelaide researchers discovered monotremes use a completely different sex determination system than other ...

The field of cardiology is increasingly recognizing the importance of sex differences as a critical factor in cardiovascular health, influencing both the ...

Kobick first issued a preliminary injunction against the policy last month, but that ruling applied only to six people who joined with the American Civil Liberties Union in a lawsuit over the passport ...

A federal judge has blocked the Trump administration from limiting passport sex markers for many transgender and nonbinary ...

Proposed language would recognize two sexes in North Carolina’s rules and public policies, echoing President Donald Trump’s executive order.

Doctors explain how conditions like psoriasis, type 1 diabetes, and inflammatory bowel disease impact men, plus how these ...

A new study in Nature shows that when pregnant mice don’t have enough iron, their (usually male) fetuses with a Y sex ...

Unexpected pregnancy loss can be a traumatic experience for fertile couples. The aim of the study was to assess the nature and type of chromosomal variants involved in early and late pregnancy loss ...

With their colorful splotches of fur, calicos are some of the most easily recognized cats. However, calico is not a breed, ...

Ever wonder why your nose looks just like your dad's, or why your hairline is following a similar path? While we often talk ...

Senate Republicans are backing a bill that defines two biological sexes, defines gender as biological sex, and adds new ...