Researchers have identified the contributions different breeds have made to the speed, endurance and work ethic of Alaskan sled dogs.

Racing sled dogs could be considered the Lance Armstrongs of the canine world, for their strength and endurance. New research sheds light on how they do it. Sled dogs are best known for "mushing" each March in the Iditarod Trail Sled Dog Race, the world's longest sled race.

Dog bite fatalities by breed, 1979 to 1996: 60: Pit bull 29: Rottweiler 19: German shepherd 14: Husky 12: Alaskan malamute 8: Doberman pinscher, chow chow 6: Great Dane Source: U.S. Centers for Disease Control and Prevention (c) 2007 Patriot Ledger, The; Quincy, Mass..

By Robert Medley, The Daily Oklahoman Jan. 24--As rain began to wash away the snow-packed dog sled path, Nancy Haddock's dog team took a final lap this past weekend in the winter weather.

By NO BYLINE ANDY Kerr, the health minister, joined hundreds of people who braved heavy rain for the One O'Clock Run down Edinburgh's Royal Mile yesterday. The annual event is designed to encourage Scots to get the New Year off on a healthy footing. Mr Kerr said: "If I can do it, anyone can.