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Yellowstone National ParkBull moose grazing in stream.
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Yellowstone National Park
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Yellowstone Wolf.  

Did You Know?
There were no wolves in Yellowstone in 1994. The wolves that were reintroduced in 1995 and 1996 thrived and there are now over 300 of their descendents living in the Greater Yellowstone Area.

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Last Updated: November 12, 2008 at 16:51 EST