"If you are ever fortunate enough to hear the howling of Yellowstone wolves, once you have read this book, you will always think of Wolves Nine and Ten. If you ever see a Yellowstone wolf, chances are it will be carrying their DNA. The restoration of the wolf to Yellowstone came perilously close to going wrong, but it didn't. It is now recognized as one of conservation's greatest achievements, and Wolves Nine and Ten will always be known as its emblematic heroes."--Back cover.