Caribou are often known by another name--reindeer! These huge animals are known for their massive northern migration in the summer months. Readers explore animal migrations, life cycles, and other important science curriculum topics as they learn about these huge creatures that call North America home. Eye-catching fact boxes accompany informative main text, helpful graphic organizers, and a map of where caribou are found in North America. Vibrant photographs of caribou in their natural habitats keep readers engaged as they learn.