Prologue : Saving Humphrey -- Minds in the water -- First insights -- In search of the dolphin Rosetta stone -- Nonterrestrial thinkers -- The face in the mirror -- Through the looking glass -- ...

For humans, eyes are an important indicator of attention. By the time they are one year old, babies appear to understand how visual perception works and will consistently follow their mother’s gaze.

Gregg, described as a “spokesperson for mainstream science,” and co-editor of Aquatic Mammals, analyzes the state of scientific research on dolphin cognition—alongside other notable species such as ...