What would happen if animals and humans could actually speak to each other? Tom Mustill--the nature documentarian who went viral when a thirty ton humpback whale breached onto his kayak -- asks this question in his thrilling investigation into whale science and animal communication. "When a whale is in the water, it is like an iceberg: you only see a fraction of it and have no conception of its size." On September 12, 2015, Tom Mustill was paddling in a two-person kayak with a friend, just off the coast of California. It was cold, but idyllic--until a humpback whale breached, landing on top of him, releasing the energy equivalent of forty hand grenades. He was certain he was about to die, but when his head miraculously broke the surface, he felt as though he'd survived a lightning strike. In the interviews that followed the incident, Mustill was left with two seemingly unanswerable questions: Was this an accident or an act of aggression, and what could this fleeting encounter teach us? Drawing from his experience as a naturalist and wildlife filmmaker, Mustill started investigating human-whale interactions around the world. When he was approached by two tech entrepreneurs, who told him they wanted to use artificial intelligence (AI) to decode animal communications, Mustill embarked on a journey where big data meets big beasts, using animal eavesdropping technologies to train AI--originally designed to translate human languages--to discover patterns in the conversations of animals. There is a revolution taking place in biology, as the technologies we've developed to explore our own languages are turned to nature.

In How to Speak Whale , Mustill takes readers on a fascinating journey, from seventeenth century Dutch inventors, to the whaling industry of the nineteenth century, to the cutting edge of Silicon Valley, looking at how scientists and start-ups around the world are working with powerful new technologies to decode animal languages. Whales, with their giant mammalian brains, offer one of the most realistic opportunities for this to happen. But what would the consequences of such human-animal interaction be? We're about to find out.