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 male and female reproductive systems have different roles but together allow the combination of DNA of the egg and sperm that results in the development of new life. Diabetes can affect both the ...

Sometimes it’s easy to tell if something is living or not. A teddy bear might look like a bear, but it cannot do any of the seven things it needs to be able to do to count as being alive. A car can ...

We have two contradictory expectations about human biology and behaviour. Given our primate and mammalian ancestry, we must be pretty similar to chimps, monkeys, and even rats. But given our big ...

A global analysis of zoo records and published studies reveals that blocking reproduction through contraception or ...

The intensification of livestock production systems is a prerequisite to meet the growing demand for animal products. Genetic selection, assisted reproductive technologies and optimized reproduction ...

Human Reproduction is a peer-reviewed scientific journal covering all aspects of human reproduction, including reproductive physiology and pathology, endocrinology, andrology, gonad function, ...