Bears tend to scare us when we're outdoors and they're not behind steel bars. Particularly grizzly bears. They're big, with sharp claws and powerful jaws, and seem to be in a bad mood whenever we spot them. We hear about people being mauled to death by bears, and even of black bears attacking campers in their sleeping bags.

Are bears really as terrifying as they appear? Or is our fear driven by a lack of understanding of their behavior? Derek Stonorov knows a little bit about bears and their behavior, after all the wildlife biologist has spent the past 50 years observing coastal brown bears in Alaska, in a bid to better understand their social structures and behaviors. He details he findings in his forthcoming book "Watch the Bear."