Women usually live longer than men, and animals show the same pattern. Evolution, genes, and parenting explain why.

Jane Goodall, who chronicled the social lives of chimps, has died, but she leaves a lasting legacy on how we view the natural ...

New fossil research shows how human impacts, particularly through the rise of agriculture and livestock, have disrupted ...

Losing your baby teeth is a strange experience. The teeth gradually loosen until they're replaced by thicker, more durable ...

Sexual behavior is one reason why female mammals typically live longer than their male counterparts, according to a new study ...