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I found this on the Oregon Live website, thought I would share it.http://www.oregonlive.com/news/index.ssf/2010/02/wolves_could_help_curb_booming.htmlWolves could help curb booming herds of deer, elk in national parksBy The Associated PressFebruary 07, 2010, 7:52AMBILLINGS, Mont. -- Researchers say small packs of gray wolves introduced to national parks and other sites across the country could curb oversized elk and deer herds that are eating up parklands.But keeping the predators on target would be a tricky prospect: They breed prolifically, roam hundreds of square miles and easily pick up a taste for cows and sheep.The proposed solution, outlined in a paper for the journal BioScience: Neuter the wolves, fence them in, fit them with shock collars and add a tracking device so they can be hunted and killed if they get too far afield.