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.

The reason why, in terms of evolution, organisms have sex may seem rather obvious – they do it to reproduce. Clearly, natural selection must favour individuals who can reproduce over those who can’t.

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 ...

Humans have long been obsessed with the idea of machines being able to self-replicate and a number of experts believe they will play an important part in shaping how Earth is in the future. One ...

Advanced SpaceLife Research Institute Launches 30-Year Strategic Research Initiative to Study Human Sexual Health, Behavior, and Reproduction Factors in Space ASRI was designed to ensure that humanity ...

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 ...

Nobody has had sex in space. That’s NASA’s official line, anyway. But if NASA is serious about establishing a human colony on Mars, then, as Daft Punk sang in slightly different words, those Martian ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...