Knut, the world's most famous polar bear turns 4 - pics

[Kadie]

The world's most famous polar bear Knut walks in the snow in his enclosure on his fourth birthday at the Tiergarten zoo in Berlin, on December 5, 2010 in Berlin.


The world's most famous polar bear Knut eats his 'birthday cake' on his fourth birthday in his snow-covered enclosure at the Tiergarten zoo in Berlin, on December 5, 2010 in Berlin.


Polar bear Knut stands behind his 'birthday cake' to celebrate his 4th birthday in the Zoo of Berlin, Germany, Sunday, Dec. 5, 2010. Berlin's famous polar bear Knut, who was rejected by his mother but went on to win the hearts of millions across the globe, celebrated his 4th birthday Sunday with a cake made of ice, fishes and some vegetables.


Polar bear Knut stands behind his 'birthday cake' to celebrate his 4th birthday in the Zoo of Berlin, Germany, Sunday, Dec. 5, 2010. Berlin's famous polar bear Knut, who was rejected by his mother but went on to win the hearts of millions across the globe, celebrated his 4th birthday Sunday with a cake made of ice, fishes and some vegetables.


Polar bear Knut sits behind his 'birthday cake' to celebrate his 4th birthday in the Zoo of Berlin, Germany, Sunday, Dec. 5, 2010. Berlin's famous polar bear Knut, who was rejected by his mother but went on to win the hearts of millions across the globe, celebrated his 4th birthday Wednesday with a cake made of ice, fishes and some vegetables.

[sharesunited]

1. Made with a blubber batter?