The world famous polar bear Knut is seen during his first outing at Berlin's Zoologischer Garten zoo March 23, 2007, left, and on his first birthday Wednesday, Dec. 5, 2007. Knut caused a global sensation when he survived rejection by his mother and attracted more than two million visitors to the zoo.
A wellwisher from Belgium holds up a birthday card for Knut the polar bear on his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Knut the polar bear strolls around as he celebrates his first birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007. Knut now weighs about 250 pounds and is no longer snow white.
Knut the polar bear sits in his enclosure as he celebrates his first birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Knut the polar bear naps before receiving his 1st birthday "cake" at the Berlin Zoo Wednesday, Dec. 5, 2007, in Berlin, Germany. Zoo officials celebrated Knut's 1st birthday by inviting the public and the media to watch Knut eat his cake, whose ingredients included rice, potatoes, carrots and a whole fish. Knut drew worldwide media attention after he was born at the zoo and rejected by his mother one year ago.
Knut the polar bear looks up at the media before receiving his 1st birthday "cake" at the Berlin Zoo Wednesday, Dec. 5, 2007, in Berlin, Germany. Zoo officials celebrated Knut's birthday by inviting the public and the media to watch Knut eat his cake, whose ingredients included rice, potatoes, carrots and a whole fish. Knut drew world-wide media attention after he was born at the zoo one year ago.
Knut the polar bear receives some media attention as he celebrates his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Knut the polar bear's keeper Thomas Doerflein, right, and an unidentified zookeeper bring out Knut's cake on his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Knut the polar bear approaches his 1st birthday "cake" at the Berlin Zoo Wednesday, Dec. 5, 2007, in Berlin, Germany.
Knut the polar bear closes in on his "birthday cake" made of fish and salad as he celebrates his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Polar bear Knut nibbles on a wooden "candle" on his birthday cake on his 1st birthday in the Berlin zoo, Berlin, Germany, Wednesday, Dec. 5, 2007.
Knut the polar eats his birthday cake made of fish, vegetables and salad as he celebrates his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.
Polar bear Knut tips over the tray that contains his "birthday cake" made of fish, salad and fruit on his first birthday in the Berlin zoo, Wednesday, Dec. 5, 2007. Knut, Berlin's famous polar bear who was rejected by his mother but went on to win the hearts of millions across the globe, celebrated his first birthday Wednesday with a cake and free zoo entry for children.
Polar bear Knut eats a salad leaf from his "birthday cake" on the occasion of his 1st birthday in the Berlin zoo on Wednesday, Dec. 5, 2007.
Knut enthusiasts line up to catch a glimpse of the polar bear as he celebrated his 1st birthday at Berlin's Zoologischer Garten zoo Wednesday, Dec. 5, 2007.