Rewilding is comprehensive, often large-scale, conservation effort focused on restoring sustainable biodiversity and ecosystem health by protecting core wild/wilderness areas, providing connectivity between such areas, and protecting or reintroducing apex predators and highly interactive species (keystone species). Billions of years of evolution has created ecosystems that are holistic and balanced. Our species has disrupted that equilibrium but we have an opportunity to fix things by remembering we are simply part of a larger very complex system.