Endurance, strength, and intelligence are the three main characteristics of sled dog breeds. These dogs are usually medium to large size dogs, with a very muscular build. Before the invention of automobiles sled dogs were used to help mankind transport supplies. However, sled dogs are now treated as pets and participates in sled dogs racing.

Sled dogs are covered with a double layer coats, which can withstand very low temperatures. These coats act as insulation against the ice and snow. Regular brushing and grooming are a must for sled dogs. During summer, they also shed a lot, as they lose a lot of their undercoat. Although, this phenomena is a problem for people with dog allergies.

The Siberian Husky, the Alaskan Malamute, the Chinook, the Sakhalin Husky, the Canadian Eskimo dog, the Mackenzie River husky, and the Greenland dog are some of the traditional sled dog breeds. In modern sled dog races the Alaskan huskies are a hot favorite because they are faster than traditional breeds like the Alaskan malamute. Though, they are not as strong as other breeds but they have the ability to cover distances much faster. These dogs represent a variety of types with different lines.

Sled dog racing as the name suggests sled dogs participates in this race. It is a winter and fall sport where the sled dogs are tied to a sled, and then driven by the driver. The dogs are harnessed individually, with tug lines attached that are linked into a central gang line. Approximately 22 dogs are used in a racing team, who are linked in pairs. Short distance, middle distance, and long distance are the three main categories in dog sled races. Today, sled dog races are performed in many countries.