They've got some Kodiak bears at the Seattle zoo, and they are absolutely huge. How huge, you ask?
Well, how's about this (from here. WARNING -- graphic image on the site.):
Estimated weight - 1,000-1,200 lbs.
Estimated age - 15-20 years
Hide measurement from nose to tail - 10 feet 6 inches
Skull width - 10 11/16 inches
Skull length - 17 13/16 inches
Skull score (length and width combined) - 28 1/2 inches
North American record brown bear skull score - 30 3/4 inches
The number of bear skulls with a score above 30'' in Alaska since 1904 - 19
The last photo is very graphic and disgusting dead human - but look at the size of that bear! The following pictures are of a guy who works for the forest Service in Alaska. He was out deer hunting. A large world Record Grizzly charged him from about 50 yards away. The guy unloaded a 7mm Mag Semi-auto into the bear and it dropped a few feet from him.
The thing was still alive so he reloaded and capped it in the head. It was over one thousand six hundred pounds, and 12'6" high at the shoulder. It's a world record. The bear had killed a couple of other people. Of course, the game department did not let him keep it. Think about it. This thing on its hind legs could walk up to the average single story house and could look on the roof at eye level. Also his last meal was human.