Your support goes further this holiday season. When you buy an annual membership or give a one-time contribution, we’ll give a membership to someone who can’t afford access. It’s a simple way for you ...

Sperm donated in the UK is being exported to other countries and can be used to create large numbers of children across the world, violating a strict 10-family limit that applies in the UK, experts ...

In vitro fertilisation (IVF) is a process by which an egg is fertilised by sperm outside the body: in vitro. IVF is a major treatment for infertility when other methods of assisted reproductive ...

On the co-existence of Irco forms of flowers in the same species or genus,—a more conspicuous one adaptred to cross-ferlilisalion by insects, and a less conspicuous one adapted to self-fertilisation.