Some male animals may evolve weak immune responses to transmit diseases. This is an Inside Science story. (Inside Science) -- In the battle of the sexes, sexually transmitted diseases may sometimes be ...

For decades, studying menstruation has posed a problem even the most sophisticated lab equipment couldn’t solve: most lab ...

Many mountain gorillas keep living - vigorous and socially engaged - for a decade or more beyond the years of reproduction.

Editor’s Note: The views expressed in this commentary are solely those of the writers. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news ...

A woman's fertility usually begins to decline in her mid-30s. This means the chances of becoming pregnant decreases ...

New research from the Max Planck Institute for Evolutionary Anthropology and the University of Turku reveals that female ...

As a great queen once sang in 2011, “women run the world.” This is true even in the animal kingdom, where females often lead the group. From insects to apex predators, female-led species are strong, ...

Dominant female meerkats' quest for dominance may be down to genes that give them the upper hand. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.