Wolves can hear sounds from up to 10 miles (16 kilometers) away. They run at speeds up to 37 miles (60 km) per hour. These engaging facts and more are waiting to be discovered in Wolves, an Animals in My Backyard book. This is an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with video, audio, weblinks, slide shows, activities, hands-on experiments, and much more.