Book excerpt: Now available in paperback, founder of the Black Hills Wild Horse Sanctuary and a lifelong rancher, Dayton O. Hyde acts as a guide to the natural history, behavior, and future chances of the wild horses that survive across the United States, from the mustangs of the West to the ponies of Assoteague and Chincoteague islands. He writes as well of his personal experiences with wild horses around the globe, from the ghostly white horses of the French Camargue to zebras in Africa. Beautifully illustrated with the work of Rita and Charles Summers, renowned photographers of the world's wild horses, this arresting book truly conveys the nature, and the plight, of these splendid animals.