By Marnie Hunter, CNN (CNN) — Shayne Burke let out a scream. A grizzly bear had just taken a “good chomp right to the bone” on his leg. The bear dropped him. “And then she was up on my ...

FILE: A grizzly bear is seen standing in the snow in Yellowstone National Park, Wyo. Greg Meland/Getty Images Hibernating bears cut their metabolic rate roughly in half, slow their breathing and ...

A grizzly bear had just taken a “good chomp right to the bone” on his leg. The bear dropped him. “And then she was up on my back, and then just went to bite down on the back of my head ...

By Marnie Hunter, CNN (CNN) — Shayne Burke let out a scream. A grizzly bear had just taken a “good chomp right to the bone” on his leg. The bear dropped him. “And then she was up on my ...

Editor’s Note: “Close Encounters: Tourists in the Wild” on The Whole Story with Anderson Cooper takes us to Yellowstone National Park, where visitors behaving badly can lead to dangerous encounters ...