How rewilding has transformed the conservation movement, combining radical scientific insights with practical innovations. Progressive scientists and conservation professionals are pursuing a radical new approach to restoring ecosystems: rewilding. By recovering the ripple effect generated by the interactions among plant and animal species and natural disturbances, rewilding seeks to repair ecosystems by removing them from human engineering and reassembling guilds of megafauna from a mix of surviving wild and feral species and de-domesticated breeds, including elk, bison, and feral horses. Written by two leaders in the field, this book offers an abundantly illustrated guide to the science of rewilding. It shows in fascinating detail the ways in which ecologists are reassembling ecosystems that allow natural interactions rather than human interventions to steer their environmental trajectories. Rewilding looks into a past in which industrialization and globalization downgraded grasslands, describes current projects designed to recover self-willed ecosystems, and envisions the future with ten predictions for a rewilded planet. It shows how rewilding is shaking up conservation science and policy, bringing new hope and renewed purpose to efforts to revive essential ecological processes. Color illustrations capture moments of beauty in nature and offer enlightening infographics and visualizations.