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 ...

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 ...

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 ...

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

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

Low iron levels can flip the genetic switch on a mouse's sex during development, causing XY embryos to grow female features.

For decades, scientists have known that platypuses and echidnas – Australia’s unique egg-laying mammals – have another ...

Developmentally expressed genes play a fundamental role in the formation of a wide range of organs. The Y chromosome-located ...