Book excerpt: What do a sea turtle, an iguana, and a python have in common? They’re all reptiles! But do you know what makes a reptile a reptile? Read Do this book to find out! Learn all about birds, insects, mammals, and other animal groups in the Meet the Animal Groups series - part of the Lightning Bolt BooksTM collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt BooksTM bring nonfiction topics to life!