COMMENT:Nonhuman animals do not merely react without awareness in solving problems; new information on perception, thought, and even language (in chimpanzees) suggests that the gulf between human and animal consciousness is not as wide as often thought. The Goulds make the case that humans and animals differ in complexity but not in kind in this respect, using many fascinating illustrations of animal behavior that might go beyond the pre-programmed or automatically learned. The study of animal minds reveals much about the human version as well. This work brings Donald R. Griffin's <cite>The Question of Animal Awareness</cite> (1981) to bloom.
