Humans living in space for months, years, or even generations will need to navigate sex in a zero-gravity world.

In the debate over human origins and the nature of sexual reproduction, religious and scientific perspectives often diverge. The Bible claims man came first, with women derived from man’s rib. Yet, ...

Ducks with corkscrew penises, fish changing sex – what do we really know about sex and reproduction on Earth? Less than we think, reveals a mind-boggling new book. Elle Hunt explores ...