What it argues
Frans de Waal's central argument is that we've spent most of the last century asking the wrong questions about animal intelligence. We designed tests to reveal what animals lack — the capacity to do what humans do — rather than to reveal what they actually do in their own ecological and social contexts. The result was a science that systematically underestimated every species it studied, from crows to chimpanzees to octopuses.
De Waal, a primatologist at Emory University, draws on decades of fieldwork and lab research to show that animal cognition is not a single ladder with humans at the top but a wide array of specialized abilities shaped by survival needs. Elephants demonstrate remarkable memory for other individuals and empathy for dying members of their group. Crows fashion tools they've never seen used by others. Chimpanzees pass social information through generations without human intervention. A cleaner wrasse fish passes a version of the mirror self-recognition test — a benchmark psychologists once thought reserved for the great apes.
What it gets right
- 1.
Anthropocentrism has systematically biased animal cognition research. Tests designed to detect what animals can't do tell us little about what they can do in their own contexts.
- 2.
Intelligence is not a ladder but a wide bush. Different species have evolved different cognitive specializations suited to their ecological and social needs.
- 3.
Anthropodenial — the refusal to attribute mental states to animals — is as distorting as naive anthropomorphism. Both block accurate observation.
What it covers
Who wrote it
Frans de Waal is a Dutch-American primatologist and ethologist at Emory University, where he directs the Living Links Center at the Yerkes National Primate Research Center. He is the author of more than a dozen books, including Chimpanzee Politics, Bonobo, Our Inner Ape, and Mama's Last Hug. His research on primate social behavior, empathy, and morality has been widely cited in evolutionary biology, psychology, and philosophy. He received the Los Angeles Times Book Prize and the American Humanist Award, among other honors.