The Greenland Dog (Greenlandic: Kalaallit Qimmiat, Danish: Grønlandshund) is a large breed of husky-type dog kept as a sled dog. In western Greenland north of the Arctic Circle and entire eastern Greenland, it is illegal to import any dog from outside (except for police and assistance dogs with a special permit), and since 2017 all dogs have to be microchipped and registered in the Greenland dog database. The inner layer consists of short wool-like fur, the outer layer of longer, coarser, water-repellent fur. The Greenland Dog comes in all colors, from black to fawn. The Greenland dog has been a draught animal in the Arctic regions for centuries and consequently they have developed a powerful body and heavy coats, with a natural capacity for load pulling and endurance in a harsh working environment. Greenland dogs have been used on many expeditions by polar explorers, including Fridtjof Nansen and Roald Amundsen.