Grizzly Bear Appears to Have a Heart Attack [VIDEO]

It looks like cholesterol has claimed another victim. A video has recently surfaced of a wild grizzly, apparently having a heart attack. The video was shot on Kodiak Island, Alaska. It shows footage of a grizzly running up hill, only to have it's legs lock up and roll back down the hill. Was it a heart attack, or some other strange medical condition? You be the judge.