Did you know that whales breathe air just like people do? How about that a blue whale is one of the biggest mammals that ever lived? Discover these fascinating facts and more in this updated deep-dive into the biology of whales, including the latest information on whale sizes and statistics, how and why some whales use echolocation, and stories of recent whale rescue efforts. Gail Gibbons is a titan in the field of children's nonfiction, having published over 120 nonfiction books for kids, including the Sharks and Sea Turtles, and having sold hundreds of thousands of books. Whales is a vital tool for anyone who wants to begin conversations with kids about the importance of protecting this magnificent species. This title is part of the Explore the World...with Gail Gibbons series, which promotes active learning, good citizenship, and student leadership.