2006 - How Animals Have Sex a Guide to the Reproductive Habits of Creatures Great and Small (Paperback) ISBN-13: 9781592401918 ISBN-10: 1592401910 Genre: Science & Math 5 2005 - How Animals Have Sex (Hardcover) → Paperback ISBN-13: 9780297851127 ISBN-10: 0297851128 Genres: Science & Math, Humor & Entertainment 2 |