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 ...

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

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

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 ...

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.

We're a step closer to two men being able to have genetic children of their own after the creation of fertile mice by putting ...

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

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