No one has spent more time observing and documenting wild wolves than retired National Park ranger Rick McIntyre, who has watched wolves in America's national parks for more than 40 years, 25 of those years in Yellowstone, where he has accumulated over 100,000 sightings. McIntyre's other books include The Rise of Wolf 8 and The Reign of Wolf 21, and he is at work on a fourth book about Wolf 06 and other Yellowstone alpha females. He lives in Silver Gate, Montana.