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Dave McKay of Canada competes in the pole vault at the Toronto International Track & Field Games in Toronto, on July 11, 2012. [Photo/Agencies]

Mushers and their dogs compete after the mass start of the eighth stage of the La Grande Odyssee sled dogs race in Bessans, on Jan 16, 2012. The race crosses the Alps in France covering over 1000 km (621 miles) over 11 days. [Photo/Agencies]