Book excerpt: In 1995 - 96 twenty-three grey wolves were released in Yellowstone National Park where, due to over-hunting, there had been no wolves at all for almost seventy years. This reintroduction project was an overwhelming success. Over twenty years later we can still see the changes the grey wolves brought to Yellowstone National Park. Now that the elk graze higher ground, seedlings are growing tall, rivers are getting deeper as beavers return, and a lively pond ecosystem is developing. This true story offers an important lesson about the difference one creature can make in creating a healthy, thriving world. Acclaimed environmental author and illustrator Celia Godkin delivers an inspiring, feel-good environmental story that is the perfect follow up to her most recent nonfiction picture book, Skydiver: Saving the Fastest Bird in the World, a Bank Street Best Book that was also shortlisted for several awards. The Wolves Return features Godkin's evocative, full-spread pencil crayon and watercolour illustrations and is further enhanced by extensive information on the Yellowstone Wolf Project, including maps and statistics that will fascinate young animal lovers and inquisitive minds.