The lives of animal groups can be as full of intrigue, drama, and machinations as any novel or movie starring humans. But revealing this requires extraordinary perseverance. Following their reintroduction to Yellowstone National Park, no other wolves in the world have been more closely monitored. And of all the people involved, nobody has spent more time in the field watching them than biological technician and park ranger Rick McIntyre. Amongst wolf aficionados, wolf 21 – for the wolves are identified by a number – was one the most famous. But before 21, there was wolf 8, and this is his story.