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A runner looks at a penguin as he takes part in the Antarctic Marathon, held for the first time in the frozen continent, on March 1, 2013. Fifty-two competitors from different countries took part in the race. AFP PHOTO/JOEL ESTAY (Photo credit should read JOEL ESTAY/AFP/Getty Images)

A runner looks at a penguin as he takes part in the Antarctic Marathon, held for the first time in the frozen continent, on March 1, 2013. Fifty-two competitors from different countries took part in the race.  AFP PHOTO/JOEL ESTAY        (Photo credit should read JOEL ESTAY/AFP/Getty Images)