The rise in infertility is not limited to humans, as environmental stressors are quietly undermining the reproductive ...

For example, right before females ovulate — when estrogen reaches its peak — they tend to be more physically active. The ...

A massive study of ancient and modern DNA from thousands of West Eurasian people has identified nearly 500 genetic variants ...

All living things have limited energy and resources, and face trade-offs between competing priorities,” observed the study’s ...