Harry Schlitz, owner of Sorrel, an Alaskan Husky, looks on while Michael Murphy, 5, and sister Sarah Murphy, 9, of Rockport pet him after a demonstration about sled dogs at the Rockport Public Library. Sorrel, along with two other dogs, Su and Pixie, are part of a sled dog educational and therapy program, Mountain Mushers, which travels across the country. Photo by Maria Uminski/ Gloucester Daily Times

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