The author delves into the science, psychology, and art of wilderness survival. His analysis is riveting, his conclusions startling. After her plane crashes, a seventeen-year-old girl spends eleven days walking through the Peruvian jungle. Against all odds, with no food, shelter, or equipment, she gets out. A better-equipped group of adult survivors of the same crash sits down and dies. What makes the difference? Examining such stories of miraculous endurance and tragic death�how people get into trouble and how they get out again (or not)�Deep Survival takes us from the tops of snowy mountains and the depths of oceans to the workings of the brain that control our behavior. Through close analysis of case studies, Laurence Gonzales describes the essence of a survivor and offers twelve "Rules of Survival." In the end, he finds, it's what's in your heart, not what's in your pack, that separates the living from the dead. Fascinating for any reader, and absolutely essential for anyone who takes a hike in the woods, this book will change the way we understand ourselves and the great outdoors.