Surprising pattern: The genetic programmes responsible for the development of sex-specific organ characteristics in mammals are turned on almost exclusively late in the development of the organs, in ...

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 ...

The majestic sight of a male lion, with its flowing mane and regal presence, is one of the most iconic images of the African savannah. Often dubbed the "King of the Jungle," despite residing in the ...