Once a Wolf - How Wildlife Biologists Fought to Bring Back the Gray Wolf With Photographs by Jim Brandenburg Published by Houghton Mifflin, March 1999 In the "Scientists in the Field" series, Ages 7 - 12, Hardcover 0-395-89827-7

With powerful rare photographs by Jim Brandenburg, this book explores the long, troubled relationship between man and wolf. But as it traces the persecution of the wolf throughout history, it also reveals the role scientists have played in preserving Canis lupus.