"An astonishing, unconstrained exploration of the nature and practice of cetacean culture . . . a revolutionary book." —Philip Hoare, author of The WhaleIn the songs and bubble feeding of humpback whales; in young killer whales learning to knock a seal from an ice floe in the same way their mother does; and in the use of sea sponges by the dolphins of Shark Bay, Australia, to protect their beaks while foraging for fish, we find clear examples of the transmi...