Deep Thinkers

A remarkable look at dolphin and whale intelligence, communication, and culture, with stunning photographs: “A wonderful read.” — Biologist Dolphins, whales, and porpoises are often considered to be the smartest nonhuman creatures on Earth. Science and nature buffs are drawn to stories of their use of tools, their self-recognition, their beautiful and complex songs, and their intricate societies. But how do we know what we know, and what does it mean? In Deep Thinkers , renowned cetacean biologi