Sled dog racing is a competitive sport where teams of sled dogs pull a sled over snow or ice. Races can vary in distance, ranging from short sprints to long-distance events like the Iditarod, which covers over 1,000 miles in Alaska. The sport requires both the dogs and their mushers to be well-trained and in good physical condition. Mushers, the people who drive the sleds, guide their teams using commands and manage the dogs' pace and energy. The races often take place in cold, snowy environments, showcasing the strength and endurance of the huskies and other breeds used in the sport.