BERLIN, Germany (CNN) -- Concerns were growing Wednesday for a polar bear born last month at a German zoo after its twin died and was possibly eaten by its mother. One year ago Vera gave birth to Flocke, pictured here playing in her enclosure in April. The young polar bear died Monday, less than two weeks after it was born, Nuremberg Zoo said. The surviving twin was doing well, the zoo said, but added that it was concerned the mother may not be able to care for it properly. Zookeepers watching a video feed from the bears' enclosure said they had noticed the baby bear looking thinner and weaker. They saw the bears' mother, Vera, nudging the dead bear with her nose and observing it -- and as of Wednesday, they said, the dead bear was nowhere to be seen. "It is very, very sad," said zoo director Dag Encke. "it is unfortunately frequently the case that with twins, one of the animals doesn't survive." Zookeepers had kept their distance from Vera and her babies, watching them only on camera so as not to make the mother feel threatened. Polar bears are known to eat their young if they sense any danger or interference. "We have to worry more about the surviving young animal and take care that the polar bear with her baby is not disturbed," Encke said. "So far, Vera is caring for the surviving baby in an exemplary way." One year ago Vera gave birth to Flocke, who became an instant celebrity across Germany. Flocke's first birthday is Thursday.
when did the bear die who died in germany What do mothers often eat if they sense danger? When did the young polar bear die? When were the babies born What has died on monday who are concerned What animal were German zookeepers concerned about? How old was the cub that died on Monday? What is the name of the zoo where the polar bears live? Who are zookeepers concerned about? Where were these polar bears located? When did the young polar bear die? Who died less than two weeks after it was born? What type of bear was the animal? What do mother polar bears do to their young sometimes? What will mother bears do if they sense danger? Where is the zoo located? Which city is the zoo located in?
Monday,
The young polar bear
their young
Monday,
One year ago
polar bear
the zoo
polar bear
less than two weeks
Nuremberg
a polar bear
Nuremberg Zoo
died Monday,
young polar bear
polar
eat
any
Nuremberg
Nuremberg
German zookeepers concerned for baby polar bear after its twin died .
Young polar bear died Monday, less than two weeks after it was born .
Baby nowhere to be found in enclosure; mothers often eat young if sense danger .