Reaching up to 800 pounds and 8 feet tall when standing, grizzly bears boast tremendous size and physical strength and have almost no natural enemies. Or just one — humans. But we’ve proved formidable ...

In the fall of 2010, Kim Wunderlich was bowhunting for elk in Montana’s Gravelly Mountains when a grizzly bear charged. It was Sept. 17—my 49th birthday. I was bowhunting with my friend John ...