“Would you say that you study language or intelligence, or is there no difference?” She replied: There is a difference because we have apes who have no linguistic abilities in the human sense, but who do quite well on cognitive tasks such as solving a maze problem. Language skills can help elaborate and refine cognitive skills, though, because you can tell an ape who is language-trained something that he does not know. This can put a cognitive task on a whole different plane.
