Animals in danger, polar bear.

First place is occupied by the polar bear as a species could disappear within 50 years if, as expected, continue to shrink the Arctic ice sheets. The layer of Arctic sea ice melts at an average of 9% every ten years.
 Polar bears belong to a species that depends entirely on the existence of the frozen sea. The bears use ice as a floating platform from which to hunt seals. At present there are only 20,000 to 25,000.