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.
They do their winter sleep thing and wake up cranky, mean, and hungry as he11. Fall they eat all they can. Spring they start the cycle over. In grizzly country we fish and hunt knowing grizzlies are always on the prod. Mostly food and sometimes they think they have to defend themselves and/or the kids. I never wondered much how they do the winter thing. Just made sure to pay attention when they’re awake.
Yes, they hibernate too.