A chemical analysis of excavated bones shows that Mesoamericans had a long history of keeping the fiercest predators around in captivity.

They perceive depth in a very different way than we do.

Anthropomorphism, long considered a cardinal sin among researchers, is making a slow comeback.

A group of prominent scientists believes fruit flies, fish, and mollusks might experience pain and pleasure.

It gives us a glimpse of our strange future.