YOU THOUGHT YOUR BEST MAN WAS AN ANIMAL?

GUY IN MONTANA HAD AN 800-POUND GRIZZLY BEAR SERVE AS THE BEST MAN AT HIS WEDDING???

Seven years ago, a guy named Casey Anderson from Bozeman, Montana rescued a grizzly bear cub named Brutus from a wildlife preserve. The park was overpopulated, and Brutus would probably have spent his life in captivity, or been euthanized. So Casey built his OWN wildlife sanctuary, raised Brutus from a cub, and now SHARES HIS HOME with an 800-POUND Grizzly.

Casey says, quote, "It's the biggest misconception. When you hear about a grizzly bear, it's because they've done something wrong. We're trying to cure the myths, educate the public. There's a way to coexist with these animals as long as you play by the rules."

And how's THIS for insanity: Last summer, when Casey married an actress named Missi Pyle (--who was in "Harold and Kumar Escape from Guantanamo Bay" and "Dodgeball") . . . Brutus was Casey's BEST MAN. (ABC News / Daily Mail)

(--Check out some unbelievable photos of Casey, Missi and Brutus. . .)