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	Home : Earth Science : Geology : Natural Resources : Biological Resources LINKS: NatureServe A frequently updated web site dedicated to endangered and threatened species. http://www.natureserve.org/ (Added: Mon Feb 17 2003) U.S. Geological Survey Fact Sheet on the Arctic National Wildlife Refuge http://pubs.usgs.gov/fs/fs-0028-01/fs-0028-01.htm (Added: Thu Apr 20 2006)
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