Cutting off reproduction — from birth control to castration — consistently adds years to life across species, even humans.

Many mammals deliver in minutes after long pregnancies. See which species have the quickest births to help newborns thrive.

In the animal kingdom, pregnancy rarely follows the rules, with many species being pregnant for a year or more.

We like to draw a line between humans and animals, a clear divide built on memory, empathy, and invention. But that line doesn’t always hold. Apes steal territory. Parrots ace memory tests. Bees react ...

Shankland's award-winning interdisciplinary book examines our dominance of and affection for animals and how empathy toward ...

Children universally believe animals experience emotions and feelings but are reluctant to say they have human-like thoughts, ...