Oyster gonads are rich in fatty acids, making them the healthiest part of the oyster, say Australian scientists. Dr Xiao Su and honours student Hintsa Mateos of Victoria University's school of ...

For 15 years, the International Association of Athletics Federations (IAAF) has apparently been quietly contacting women track-and-field athletes with high testosterone levels and issuing an ultimatum ...

The dramatic difference in gonad size between honey bee queens and their female workers in response to their distinct diets requires the switching on of a specific genetic program, according to a new ...

Sexual reproduction in mammals necessitates two sexes, each of which is characterized by sex-specific anatomical and genetic features. The phenotypic sex of an individual is largely governed by the ...

A genetically engineered mosquito with glowing gonads could become a new weapon in the battle against malaria. Researchers at Imperial College London created the mosquito by attaching a gene for ...