FILE - This undated handout photo provided by the U.S. Fish and Wildlife Service shows a gray wolf. An environmental group has filed notice that it will sue the federal government to force it to adopt... more 
FILE - This undated handout photo provided by the U.S. Fish and Wildlife Service shows a gray wolf. An environmental group has filed notice that it will sue the federal government to force it to adopt a plan for the recovery of gray wolves across the lower 48 states. Biologists with the Arizona-based Center for Biological Diversity said Tuesday, Dec. 21, 2010 they want to expand that recovery nationwide. less 
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Associated Press | Photo By U.S. Fish and Wildlife Service,file
Tue, Dec 21, 2010 1:59 PM EST