Researchers across biology, philosophy, and AI are split on what counts as a mind—and whether today’s systems qualify.

Science fiction often shows aliens with human features like eyes, limbs, and faces. But science has a reason for questioning ...

Genetic analyses of koala pedigrees help to suss out virus-induced genome changes that affect cancer risk and reproductive ...

At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...