You Can Go Home Again When native species are removed from their habitat, whole ecosystems change as a result. This program focuses on three types of animal: beaver, antelope, and ferrets. All three native species have been nearly exterminated in one way or another. The beaver were trapped, antelope hunted, and ferrets poisoned in the process of wiping out prairie dog colonies. Now these three animals are coming home. They are being re-introduced into their native southern Arizona habitats by the Arizona Game & Fish Department. This episode shows an antelope roundup using helicopters, and ferrets being taught to eat wild food.