I listened to this as an audiobook and I was completely sucked in. The true story of the re-introduction of wolves to Yellowstone National Park is woven together with the stories of park rangers, hunters, and individual wolves who park visitors and watchers were able to observes with unprecedented closeness. The bulk of the story takes place between 1995, when the wolf re-introduction project began, and 2013. The most charismatic character is a wolf known as O-Six, a female alpha, who lead a scrappy little pack to dominance and prosperity in the Lamar Canyon in Yellowstone. Exceptionally brave, a peerless hunter, blessed with skills, intelligence, and luck, she became one of the most photographed and most well-known wolves the park has ever had. As her rein unfolded, a parallel struggle was taking place in the courts in Wyoming, Idaho and Montana over the right to hunt and kill wolves. I left this book with more understanding about the political pressures of the region, and a lot of thoughts on how similar wolf packs are to human families. The loss of even one member can be devastating to all of the survivors.