Although bears in the wild hibernate, Brutus doesn't need to. "[They] hibernate for only one reason—and that's because there's no food available during the winter. ... They don't urinate, they don't defecate, they don't drink and they don't eat," Casey says. "Now Brutus—he wants nothing to do with that. Brutus loves to eat and loves to do the other things year-round."

In fact, Casey says Brutus loves the winter. "He goes out and plays in the snow, breaks the ice on his pond, has an ice bath," he says. "Sometimes we even build snowmen for him, and he likes to go out and tear them down."