Hibernating Bears Hibernation

http://www.sciencemag.org/content/331/6019/906.abstract

The brown bear must have similar metabolic features during hibernation. However the Brown Bear does wake up from time to time and sometimes wander around.

A couple of years ago an oil exploration person was killed by a Brown Bear disturbed by the noisy passage of a line of workers, waking along a seismic line.. Unfortunately, the poor man was the last in line.

If you see, columns of fog rising from piles of snow in your front yard, better post a do not disturb sign.