space flight, long
What about bears in captivity, such as in a zoo?
Do those bears also ‘hibernate’, or retire to a small dark place for a few months? I would suspect a different pattern of sunlight may change that instinctual urge to burrow away.
There was a time when all humans in the northern latitudes would essentially hibernate for the winter.
Hunker down in shelter, doing little but eating and sleeping.
Imagine being on the prairie with nothing for 50 or 100 miles in any direction, and the wind blowing 30mph for days on end.
And the temp not going much above zero. Usually below.
Nothing but a dugout or small cabin between you and the elements.
The Bears are 8 and 8.
Just saying.
L
I think I found the problem!
"Essential amino acids allowed muscle cells to grow"