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A cold dog race, tiger cubs play together and more of the week's best animal photos

A dog rests in a cage during a sled dog European Championship in Venek November 22, 2014.  REUTERS/Laszlo Balogh (HUNGARY - Tags: ANIMALS SOCIETY)
Reuters
A cold dog race, tiger cubs play together, a swan at the Winter Wonderland fair and more in this week's Animal Tracks.