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 Date: 2011-11-01 15:32:03Conservation in the United States Wolves Wolf reintroduction Yellowstone National Park Gray wolf Endangered Species Act Red wolf Pronghorn Wolf Zoology Biology Environment of the United States |
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NORTHERN ROCKY MOUNTAIN GRAY WOLF Credit: Gary Kramer, USFWS Introduction The gray wolf (Canis lupus) once roamed throughout the northern hemisphere, but today occupies only a fraction of its historic range. Gray wolves