What do a shark, a seahorse, and a ray have in common? Theyâre all fish! But do you know what makes a fish a fish? Read this book to find out! Learn all about reptiles, insects, mammals, and other animal groups in the Meet the Animal Groups series - part of the Lightning Bolt Booksâą collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Booksâą bring nonfiction topics to life!