Antidepressants have strong impact on male brains — with the nature of the impact depending on the age of the subject — but ...

Males imprint their DNA by adding methyl modifications to it in a way that alters the activity of genes in order to promote ...

Researchers at the IPK Leibniz Institute have discovered a previously unknown protein that is central to plant reproduction.

Imane Khelif, the Olympic boxer who was at the center of controversy surrounding her gender and her gold medal boxing victory ...

A healthy male mouse (left), an intersex mouse (middle), and a genetically male mouse (right) that developed as female, all born to iron-deficient mothers. Credit: M. T. More ...

Male stick insect hatches from all-female colony at Science World in 'extremely rare' event Experts wonder if a glitch in the cloning process led to the production of a male insect. 'That’s half ...

“While longitudinal transitioning studies of transgender athletes are urgently needed, these results should caution against ...

Olympic boxing gold medalist Imane Khelif has voiced her commitment to perseverance in response to the recent surge of hatred ...

Writing for Nature Ecology and Evolution (Vol. 3, No. 12), four biologists state that “same-sex sexual behavior has been ...

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

Kirsty Coventry, the new president of the International Olympic Committee (IOC), says its members have shown "overwhelming ...

In Philadelphia — the birthplace of American liberty — freedom is a word we celebrate with pride. But what does that freedom ...