Donald R. Griffin draws on the research in animal behavior, the philosophy of mind, and cognitive science of the 1980s and 1990s to broaden the terms in which one can consider the nature and potential of animal minds. In species ranging from bees to dolphins to chimpanzees, Griffin gives examples of foraging behavior, predatory tactics, artifact construction, tool use, and the experimental psychology of animal cognition. He gives us instances of animals communicating vocally and symbolically, revealing some of the surprising intricacies of their social arrangements.