2020 - What the Dog Knows Young Readers Edition Scent Science and the Amazing Ways Dogs Perceive the World (Paperback) ISBN-13: 9781534428157 ISBN-10: 1534428151 Genres: Children's Books, Crafts, Hobbies & Home, Science & Math, Self-Help ? 2015 - What the Dog Knows Scent Science and the Amazing Ways Dogs Perceive the World (Paperback) ISBN-13: 9781451667325 ISBN-10: 1451667329 Genres: Crafts, Hobbies & Home, Science & Math, Medical Books 4 2013 - What the Dog Knows the Science and Wonder of Working Dogs (Hardcover) ISBN-13: 9781451667318 ISBN-10: 1451667310 Genres: Biographies & Memoirs, Crafts, Hobbies & Home, Science & Math ? |