( CNN ) -- There 's a new polar bear on the block -- meet Anori , half-sister to Knut , who made her public debut this week at Wuppertal Zoo in Germany . Small , fluffy and cute , she wandered out into a small outdoor enclosure with her mother , Vilma , for the first time Thursday to meet her audience . Anori , born on January 4 , opened her eyes at a month old , the zoo says . Since then , she has worked on mastering the tricky arts of walking and climbing , with her efforts captured by a surveillance camera placed within the bears ' den . Video footage from the outdoor enclosure shows the cub clambering tentatively along a log . Anori shares a father with Knut , the cub who became an Internet star after he was abandoned by his mother and hand-raised by a zookeeper . Knut died suddenly at age 4 in March 2010 at Zoo Berlin , to the sorrow of many worldwide who had followed the cub 's progress . A second cub was born with Anori in January but died a week later , the zoo said . Wuppertal Zoo has a long history of raising polar bears , with the first cub born there in 1931 , the zoo 's website says . Scientists believe there could be as few as 25,000 polar bears left in the world , according to Polar Bears International , a conservation group . In 2008 , the U.S . Fish and Wildlife Service listed the polar bear as threatened under the Endangered Species Act .
Anori was born in January and opened her home a month later . She has ventured into an outdoor enclosure for the first time with her mother . Anori shares a home with Kai , the polar bear cub who became an Internet celebrity .