Polar bear cubs follow their mother Uslada in their enclosure during their first appearance in the St. Petersburg zoo

 
Polar bear cubs follow their mother Uslada in their enclosure during their first appearance in the St. Petersburg zoo
Polar bear cubs Petr and Krasin follow their mother Uslada (L) in their enclosure during their first appearance in the St. Petersburg zoo April 20, 2008. REUTERS/Alexander Demianchuk (RUSSIA)