A new model of tiny human ovary organoids, or ovaroids, has been developed from stem cells, according to research presented at the first Joint Congress between the European Society of Paediatric ...

A 3D graphic showing an artist's interpretation of human X and Y chromosomes. On the left are blue bundles of genetic material making an X shape and on the right blue bundles of genetic material ...

Boy or girl? It's not always as simple as that. Internationally renowned researcher into differences of sex development (DSDs), Professor Vincent Harley, introduces the topic and answers your ...

Biological sex is all over the news lately. Between the presidential executive order affecting passport policy, moving transgender inmates between prisons and regulating women's sports, appeals to ...

Sexuality and gender are often at the forefront of cultural and political debate today. In his new book, The Sexual Evolution: How 500 Million Years of Sex, Gender, and Mating Shape Modern ...

Science has a way of nudging us out of our certainties. What once seemed fixed can, with the next experiment or field study, turn out to be more complicated. Few areas have shifted more dramatically ...