As young birders we learn about the need for habitat protection and restoration. The rapid destruction of earth's wild places is alarming and sad, but all is not hopeless. This video is a clear and dramatic demonstration of the interconnectedness and importance of biodiversity. It teaches us that simple measures can have impact beyond our wildest dreams. Watch this video and learn how the reintroduction of wolves into Yellowstone National Park helped to revitalize the forests, change the course of the rivers and brought back the birds once lost to this region.