"Long before Scotland Yard or the FBI, Nature fingerprinted her numerous family," writes Ellsworth Jaeger in his remarkable book about a little-known field. "Tracks may take us back to the Earth's beginnings or give us a complete autobiography of a living animal from day to day." Charmingly illustrated throughout, Tracks and Trailcraft presents a wealth of lore. In the crisp, direct style that helped make him a widely read author...