Siku, a baby polar bear born in early December at a wildlife park in Denmark, is a YouTube star after videos of the tiny bear napping and playing were posted online.
Dec. 8, 2011Siku is seen at Skandinavisk Dyrepark in Djursland, Denmark. A Danish zoo says a month-old polar bear cub has been taken into care since its mother failed to produce enough milk to feed him. Park manager Frank Vigh-Larsen says Siku was doing "really fine."Skandinavisk Dyrepark/AP
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