Malamutes are the largest and oldest of the Arctic Sled dogs. Originating over 4000 years ago, Mals were kept by the Mahlemuts, an Inuit Tribe in Alaska. They are known for their stamina, not their speed, when pulling heavy sled loads. Alaskan Malamutes are a relatively healthy breed with an average lifespan of 12 years, but they can suffer from some common conditions like hip dysplasia, hypothyroidism, and bloat.