A behavioral ecologist's riveting account of his decades-long obsession with octopuses: his discoveries, adventures, and new scientific understanding of their behaviors.

“Mind-blowing and soul-expanding.” —Sy Montgomery, author of The Soul of an Octopus A behavioral ecologist’s riveting account of his decades-long obsession with octopuses: his discoveries, adventures, and new scientific understanding of their behaviors. Of all the creatures of the deep blue, none is as captivating as the octopus. In Many Things Under a Rock, marine biologist David Scheel investigates four major mysteries about these elusive beings. How can we study an animal with perfect camouflage and secretive habitats? How does a soft and boneless creature defeat sharks and eels, while thriving as a predator of the most heavily armored animals in the sea? How do octopus bodies work? And how does a solitary animal form friendships, entice mates, and outwit rivals? Over the course of his twenty-five years studying octopuses, Scheel has witnessed a sea change in what we know and are able to discover about octopus physiology and behavior—even an octopus’s inner life. Here he explores amazing new scientific developments, weaving accounts of his own research, and surprising encounters, with stories and legends of Indigenous peoples that illuminate our relationship with these creatures across centuries. In doing so, he reveals a deep affinity between humans and even the most unusual and unique undersea dwellers. Octopuses are complex, emotional, and cognitive beings; even as Scheel unearths explanations for the key mysteries that have driven his work, he turns up many more things of wonder that lurk underneath. This is the story of what we have learned and what we are still learning about the natural history and wondrous lives of these animals with whom we share our blue planet.

Remarkable new discoveries affirm the octopus as one of nature’s most intelligent and complex animals. This new book—written by the beloved author of the international bestseller The Soul of an Octopus and enhanced with vivid National Geographic photography—brings us closer than ever to these elusive creatures. The companion to the highly-anticipated National Geographic television special, this beautifully illustrated book explores the alluring underwater world of the octopus—a creature that resembles an alien lifeform, but whose behavior has earned it a reputation as one of the most intelligent animals on the planet. This magical journey into the world of the octopus will reveal how the large and capable brain of these creatures occupies their whole body–not just their heads—and they can actually adjust their genetic makeup to respond to the demands of the environment. It will allow readers to watch them change shape and color in order to camouflage themselves more effectively than any other species. And it will divulge how octopus mothers give their all in order to bring forth a new generation. With this offering, acclaimed author Sy Montgomery—known, thanks to her bestselling book, as the “octopus whisperer”—returns to the species she knows and loves, offering current and compassionate stories about the scientists on the front lines of octopus research and conservation. For all animal lovers—and especially those drawn to this magical marine being—this will be a book to relish, for both its fascinating imagery and its charming storytelling.