In many countries, males are more likely than females to get sick and die from three common conditions, and less likely to get medical care, according to a new study by Angela Chang of the University ...

A few males are enough to fertilize all the females. The number of males therefore has little bearing on a population's growth. However, they are important for purging bad mutations from the ...

In a recent study published in the journal The Lancet Public Health, researchers examined the differences in the leading causes of disease burden between males and females. Evidence shows that females ...

Elk have antlers. Rams have horns. In the animal kingdom, males develop specialized weapons for competition when winning a fight is critical. Humans do too, according to new research from the ...

Who has twins, and why, are fascinating and tantalizing questions. Most past and recent research has emphasized female contributions to twinning, especially fraternal twinning. Factors such as greater ...

A new study suggests female bottlenose dolphins may have a strategy for steering clear of males with a history of pushy ...