Aurora, a one-year-old female polar bear cub, plays in a swimming pool which was filled with water for the first time this spring, at the Royev Ruchey zoo in Russia's Siberian city of Krasnoyarsk. Two female wild polar bear cubs were found in Russia's Taimyr Peninsula on the Arctic Ocean coast in May 2010 and were later housed at the zoo in Krasnoyarsk. Photo by Ilya Naymushin / REUTERS
