I let go of my grip in the grizzly’s mouth with my left hand and went for the gun. I got it out of the holster, but the bear ...

Below, in an exclusive excerpt shared with PEOPLE, Kesting takes us into a nail-biting encounter with a grizzly bear. Nueltin ...

When a grizzly is angry or aggressive, it will growl or even roar — a sound that ... It’s hard to imagine a bear moving terribly fast with all that mass, but not even Usain Bolt could outrun ...