Study: Yellowstone wolves help trees rebound Current Status: Blessed (1) Change Status: BlessedPublishedUnpublishedRestoredQuarantinedDuplicatedCensored Matthew Brown, Associated Press Mon Jan 2, 2012 7:18 AM us-newsuswolvesyellowstoneyellowstone-national-park Tweet Discuss: ! keyboard shortcuts: V vote up article J next comment K previous comment
