The testes, also known as testicles, are the primary male reproductive organs. They are responsible for producing sperm and ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study now shows: ...

Never mind having a 'male' or 'female' brain, the rest of your organs may have their own sexual identities. Scientists have uncovered evidence that suggests the early cells which develop into organs ...

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs), but for other body organs it is of little help. A new study by the Max ...