July 10, 2018 Corey Nutrition Inukshuk Article, Working Dog Spotlight Working Dog Spotlight: Sled Dogs July 10, 2018 Corey Nutrition Inukshuk Article, Working Dog Spotlight Dog sledding or "mushing" is the act of dogs pulling a sled. It was once the main mode of transportation by the people who lived in the Arctic region. Today, it is primarily a recreational sport.