Photo Gallery: Knut the Polar Bear Cub Ventures Outdoors 03/05/2007
Polar bear cub Knut has become a sensation in Berlin since he was born in...
REUTERS/Zoo Berlin

Polar bear cub Knut has become a sensation in Berlin since he was born in December. In this newly-released photo, the little furball, who now weighs 6.7 kilos, ventures into the outside world in a special enclosure.