A bold, illuminating new take on the love of animals that drove human evolution.
The two-time Pulitzer Prize–winning biologist delivers "an astonishing literary achievement" (Anthony Gottlieb, The Economist).
A New York Times bestseller: "A passionate and convincing case for the sophistication of nonhuman minds." —Alison Gopnik, The Atlantic
A New York Times Bestseller
From world-renowned biologist and primatologist Frans de Waal, a groundbreaking work on animal intelligence destined to become a classic.
A guided tour through the strange science of hormones and the age-old quest to control them.