Polar bear baby Knut was born on Dec. 5, 2006, the first polar bear to be born in Berlin Zoo in over 30 years. This photo shows Knut in his first week.

• 这只名叫克纳特的小北极熊出生于2006年12月5日，它是柏林动物园30多年来首次降生的北极熊。照片拍摄于克纳特出生后的第一周里。