The Arctic region of Earth is known for sub-zero temperatures and brutal, harsh weather. But some people--and their dogs--choose to brave the deadly conditions all in the name of fun and competition. Sled dog racing is a popular winter sport involving special kinds of dogs who tolerate cold temperatures well. In this book, young readers will learn all about why some people choose to train these dogs to compete in popular races all over the Arctic. Breathtaking photos and factual sidebars will draw readers' interest and imagination.