STUTTGART, GERMANY - FEBRUARY 28: The polar bear cub sits in his basket in a handout picture offered by the Zoo Stuttgart Wilhelma on February 28, 2008 in Stuttgart, Germany. The cub was born in December 10, 2007 by parents Corinna and Anton. (Photo by Zoo Stuttgart Wilhelma via Getty Images) (credit:Getty Images)
Polar Bear Cub In Stuttgart Zoo(09 of13)
Open Image Modal
STUTTGART, GERMANY - FEBRUARY 28: The polar bear cub sits in his basket in a handout picture offered by the Zoo Stuttgart Wilhelma on February 28, 2008 in Stuttgart, Germany. The cub was born in December 10, 2007 by parents Corinna and Anton. (Photo by Zoo Stuttgart Wilhelma via Getty Images) (credit:Getty Images)
Polar Bear Cub Knut At Berlin Zoo(10 of13)
Open Image Modal
BERLIN - MARCH 02: Polar bear cub Knut, born December 5, 2006, is seen at Berlin Zoo March 2, 2007 in Berlin, Germany. The cub, whose mother Tosca rejected him, has been living with his caretaker. Zoo officials say Knut could make his first public appearance by Easter. (Photo by Zoo Berlin via Getty Images) (credit:Getty Images)
Polar Bear Cub Knut At Berlin Zoo(11 of13)
Open Image Modal
BERLIN - MARCH 02: Polar bear cub Knut, born December 5, 2006, is seen at the Berlin Zoo March 2, 2007 in Berlin, Germany. The cub, whose mother Tosca rejected him, has been living with his caretaker. Zoo officials say Knut could make his first public appearance by Easter. (Photo by Zoo Berlin via Getty Images) (credit:Getty Images)