In a sobering reminder that bears are the bosses of the backcountry, one person was killed and two others injured in a bear attack Wednesday at the heavily occupied Soda Butte campground just outside Yellowstone National Park.

A Canadian woman who was attacked in the middle of the night was bitten on her arm and leg before she instinctively played dead so the animal would leave her alone.

"I screamed, he bit harder, I screamed harder, he continued to bite," said Deb Freele of London, Ontario, who woke up just before the bear attacked.

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