This January 2013 photo provided by Rolf Peterson shows a female moose and her 9-month-old twin calves on Isle Royale in Michigan. The park’s moose population was estimated at 975 this year and is ... more 
This January 2013 photo provided by Rolf Peterson shows a female moose and her 9-month-old twin calves on Isle Royale in Michigan. The park’s moose population was estimated at 975 this year and is growing because of improving forage supplies and a drop in the number of wolves that prey on moose. (AP Photo/Courtesy Michigan Technological University, Rolf Peterson) less 
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Associated Press | Photo By Courtesy Michigan Technological University, Rolf Peterson
Mon, Mar 25, 2013 6:26 PM EDT