A new adorable polar bear cub greeted the world and cautiously tested out the cold snow as his mother Vilma proudly looked on. A little bit of snow was falling as fans came to the Rostock Zoo to see the new polar bear cub named 'Fiete' for the first time. Fiete is the half-brother of 'Knut,' a very popular polar bear who met a tragic end when he drowned in the water in his habitat at the Berlin Zoo in 2011.