You may have already heard all this, and that reintroducing wolves in 1995 started setting everything right again. The brief video How Wolves Change Rivers has more than 20 million YouTube views. George Monbiot, who narrated that video, described the process again in a popular TED Talk. It was a National Geographic cover story in 2010. There have been BBC documentaries, New York Times articles, and features in nearly every popular science