Why do wolves howl? What are the different types of wolves? Find out the surprising answers to these questions and many more in this Level 3 Hello Reader! Science book by Melvin and Gilda Berger! Did you know that wolves howl to warn their enemies away? Or that there are many different kinds of wolves, such as the tundra, timber, and red wolf? Written by renowned non-fiction authors Melvin and Gilda Berger, this Hello Reader! Science book provides fascinating information about these captivating creatures. Children will learn about where wolves live, what they hunt, how they communicate, how they survive, and much more! Each spread features engaging text and brilliant, full color photographs.