From Karen Ramstead, who’s run the Iditarod many times.
She raises, shows, and races Siberian huskies.
Most mushers in the Iditarod race Alaskan huskies, mixed breed dogs bred specially for long distance racing, endurance and speed.
Siberians are an ancient breed from (guess where), bred by the Chukchi people. Some Chukchi had reindeer too, but many only had dogs.