To say a Grizzly Bear is intimidating is probably a bit of an understatement. Adult males can weigh between 600 and 900 pounds and can be as tall as 4 feet at the shoulder. They are massive creatures and at the top of the food chain without question.
Naturalist George Ord gave the bear its classification, ursus arctos horribilis, due to its intimidating character. Lewis and Clark studied and wrote extensively about grizzlies including relaying one story in their journals of an encounter during which Lewis was actually chased by one. Not an enviable position to be in for sure!
This particular bear was one I saw in Banff National Park, Alberta, Canada last month.