A "delving, haunted, and poetic debut" (The New York Times Book Review) about the awe-inspiring lives of whales, revealing what they can teach us about ourselves, our planet, and our relationship with other species.

When writer Rebecca Giggs encountered a humpback whale stranded on her local beachfront in Australia, she began to wonder how the lives of whales reflect the condition of our oceans. Fathoms: The World in the Whale is "a work of bright and careful genius" (Robert Moor, New York Times bestselling author of On Trails), one that blends natural history, philosophy, and science to explore: How do whales experience ecological change? How has whale culture been both understood and changed by human technology? What can observing whales teach us about the complexity, splendor, and fragility of life on earth?

In Fathoms, we learn about whales so rare they have never been named, whale songs that sweep across hemispheres in annual waves of popularity, and whales that have modified the chemical composition of our planet's atmosphere. We travel to Japan to board the ships that hunt whales and delve into the deepest seas to discover how plastic pollution pervades our earth's undersea environment.

With the immediacy of Rachel Carson and the lush prose of Annie Dillard, Giggs gives us a "masterly" (The New Yorker) exploration of the natural world even as she addresses what it means to write about nature at a time of environmental crisis. With depth and clarity, she outlines the challenges we face as we attempt to understand the perspectives of other living beings, and our own place on an evolving planet. Evocative and inspiring, Fathoms "immediately earns its place in the pantheon of classics of the new golden age of environmental writing" (Literary Hub).