The Greenland Dog is a distinct and ancient breed, thought to be directly descended from the dogs brought to Greenland by the first Inuit settlers. Sled dogs are working animals, not pets. They are kept outside at all times, chained or tethered on a long lead, when they are not actually working. They are only fed about once a week when there is no snow or sea ice and they are not working, since they burn comparatively few calories just lying around. In addition, without meat from hunting, in very remote regions there is not enough food for both people and dogs.