Alaska Dispatch: There is increasing evidence that climate change, which is warming the polar region, is having a negative affect upon a variety of wildlife.
While there have long been concerns that some populations of polar bears are shrinking, studies now show that polar bears, as a species, are also shrinking in size.
The bears need ice to hunt, mostly seals, but less ice in recent years has meant less hunting, and thus the shrinking size.
Scientists say the female bears typically weigh 650 pounds, but...