Since 1979, Yellowstone has hosted over 118 million visits. During this time, 44 people were injured by grizzly bears in the park. For all park visitors combined, the chances of being injured by a grizzly bear are approximately 1 in 2.7 million visits. The risk is significantly lower for people who don't leave developed areas or roadsides, and higher for anyone hiking in the backcountry.
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