ANCHORAGE, Alaska (KTUU) - While the nation held its breath to see if Punxsutawney Phil would see his shadow — ushering us ...

Comparison of body temperature pattern of a hibernating arctic ground squirrel (in blue) and a hibernating bear (in red) in Alaska. The decrease in the bear's body temperature is much less than ...

Animals such as grizzly bears and Arctic ground squirrels have evolved the ability to hibernate as a way to survive winter months of extreme cold. During hibernation, their core body temperatures ...