Teasing apes suggest 'cognitive prerequisites for joking' evolved at least 13M years ago
                                
                                
                                    (Newser) -
                                    You would think poking or slapping a great ape would be ill-advised. But the young chimpanzees, bonobos, gorillas, and orangutans who tease their adult counterparts are rarely met with aggression. That's because, according to a new study, even great apes know when a joke is a joke. Researchers analyzed...