"Exciting things are always happening in Yellowstone" and one of the world's leading authorities on the Park should know. Paul Schullery, acclaimed author and naturalist, has been watching wildlife in Yellowstone for thirty years. He is our guide through this extraordinary Eden where wolves and grizzly bears chase elk, and mountain lions play in the sunshine. Dramas occur in every season, for Yellowstone isn't just the world's first National Park - it is living proof of our relationship with nature.