In his early years, Balto never stood out from the pack ... teams of sled dogs were able to reach the town via the 674-mile Iditarod Trail. This route was often used to deliver mail from Anchorage ...

Take the dogs out of the race and make the mushers really rely on themselves and only themselves out there. Let’s see how they would do, sprinting 12 to 16 hours a day into a Siberian wind, on a diet ...