Germany's Polar Bear Cub Quandary

The population of polar bears in Germany's zoo is decreasing. A mother polar bear in the zoo has cute little baby cubs. The cubs are nice and warm in the cave they share with their polar bear mom but the next day, the cubs are gone except for one so far. Some people say that she(mother polar bear) might have eaten them. The last baby polar bear with the mom might either throw it out from her cage, bury it or eat it like the others. (This is a picture of a baby polar bear in the mother's mouth.)The mother polaor bear's name was Vera. The father polar bear's name was Felix. I think why the mother polar bear was acting like that because of global warming. The polar bear might be tired of taking care of the cub and since the protective fur on them makes them warm in cold waters, and teaching the cub may be difficult which builds up a lot of sweat and heat in them.

From Cnn.com and under Germany's Polar Bear Quandary