The Mexican gray wolf was brought to near extinction by predator-extermination campaigns, spearheaded by the livestock industry. The Endangered Species Act made it possible for wolves to be reintroduced into the wild, where they can do their work as apex predators to keep the rest of the ecosystem in balance. But the pressure against them is still strong. We talk to David Parsons, Carnivore Conservation Biologist with the Rewilding Institute, about the successes and challenges of integrating wolves into their natural habitat.