From KSL.com:

YELLOWSTONE NATIONAL PARK — It was a mostly quiet evening in Yellowstone National Park on Sept. 11.

Following a successful hunt in Lamar Valley, the Junction Butte wolf pack — which is among the largest packs in the park — had time to eat, play and rest. That was until a grizzly bear caught the scent of the pack’s latest kill. Smelling opportunity and a meal, the bear closed in.

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