if a bear lives where there is no winters, does he go on a winters sleep just because of its instincts?

Question

just assume he is in a zoo or in a circus etc....

Answer 1

No, environmental conditions cause hibernation in bears, not just being a bear. There are many zoo bears who never hibernate. As long as resources are enough and the weather is warm enough, they will not hibernate. And female polar bears hibernate for awhile during gestation and birth of her cubs.

Answer 2

Nope, the bears in Adelaide Zoo don't hibernate

Answer 3

No. He'll be confused. But no, he won't hibernate. Polar bears don't hibernate.