Chimpanzees may think much more like humans than previously believed, according to new research published in Science. The study provides evidence that chimpanzees can rationally revise their beliefs ...

When people find out we study chimpanzees, they usually ask about their dark side. “You know chimpanzees kill each other, right?” or “Aren’t they the only animals besides humans that wage wars?” ...

You generally have reasons, good or bad, for your beliefs. You can reflect on those reasons: “Why do I think there’s a serial killer in the attic? It’s because the floor creaked.” And, paragon of ...