A January executive order by President Donald Trump designates people as female if they make the “large” reproductive cell (the egg) and male if they make the ...

A new model of tiny human ovary organoids, or ovaroids, has been developed from stem cells, according to research presented ...

Every cell in our body has a sex. But most research so far has focused on our gonads—ovaries or testes—and not on the early development of the brain. Per-Erik Olsson, professor of biology at ...

Removing a testicle will not affect your ability to get an erection or make someone pregnant. The healthy testicle will usually produce enough testosterone and sperm, unless it is very small. Surgery ...

The leader of an extreme body modification ring, who once cooked human testicles to eat in a salad, has lost a challenge against his sentence at the Court of Appeal. Marius Gustavson, who also had ...

Marius Gustavson, who had his penis removed with a kitchen knife and had human testicles cooked to eat in a salad, was jailed for life with a minimum term of 22 years last year for his role in ...

Marius Gustavson, who had his penis removed with a kitchen knife and had human testicles cooked to eat in a salad, was jailed for life with a minimum term of 22 years last year for his role in the ...