A baby polar bear abandoned by his mother and saved by a zoo worker has become an international sensation who drew a large crowd to his public debut on March 23, 2007, in Berlin.
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Berlin's new star polar bear cub Knut plays with a keeper at his enclosure of the Berlin zoo on March 28, 2007. Knut, who survived rejection by his mother, has become a marketing phenomenon in Germany. (Photo by Marcus Brandt/AFP/Getty Images)