Chimps think just like humans, scientists discover

A ground-breaking study has revealed that members of the great apes, such as bonobos, chimps and orangutans, have a theory of mind. This, researchers say, proves they can understand others' mental states -- an ability previously though exclusively reserved to humans. The idea other animals possess this trait has been debated for decades and researchers at Kyoto University think they have proved its existence. A ground-breaking study has revealed that members of the great apes, such as bonobos, chimps and orangutans, have a theory of mind. This, researchers say, proves they can understand others' mental states Theory of mind is a higher cognitive function which allows individuals to understand others' mental states.