Photo by KatieOrlinsky // Sponsored by SamsungMobileUSA // Sled dogs from Snow Hook Adventure Guides of Alaska in Willow, Alaska, take a summertime run on the trail. Sled dogs in Alaska are working dogs that have been bred for generations to excel at racing, running, pulling, hauling, and teamwork. I love watching how—regardless of the season—once they are harnessed up they transform into these incredible athletes working together. Some scientists believe sled dogs are the greatest endurance competitors in the entire animal kingdom. // Transform how you share your world with the samsungmobileusa #GalaxyS20 5G series.