Male and female reproductive systems allow human reproduction. Fertilisation occurs when a sperm and egg join to form an embryo. An embryo develops into an unborn baby in the uterus during pregnancy.

Female cockroaches can reproduce for years and have several generations of all-female young - without needing a single male, according to a new study. Japanese scientists used 15 virgin females to ...

Researchers have lifted fertility rates in older female mice with small doses of a metabolic compound that reverses the ageing process in eggs, offering hope for some women struggling to conceive. The ...

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...

But science is beginning to learn that various chemicals in the female reproductive system can facilitate – or sabotage – that sperm’s chance for victory. And it appears to happen at an early stage in ...

Researchers have lifted fertility rates in older female mice with small doses of a metabolic compound that reverses the ageing process in eggs, offering hope for some women struggling to conceive. The ...