Signs at the head of the Wapiti Trail in Yellowstone National Park, Wyo., warn away visitors after a bear mauling, Thursday July 7, 2011. Earlier, a grizzly sow killed a man who was hiking with his ... more 
Signs at the head of the Wapiti Trail in Yellowstone National Park, Wyo., warn away visitors after a bear mauling, Thursday July 7, 2011. Earlier, a grizzly sow killed a man who was hiking with his wife a mile and a half up the trail. The grizzly mauling was the first such death in the park in a quarter century but the third in the region in just over a year. (AP Photo/Matt Volz) less 
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Associated Press | Photo By Matt Volz
Thu, Jul 7, 2011 2:53 PM EDT