Michigan has held one wolf hunt. That was in 2013, when 22 wolves were killed in the Upper Peninsula.
The next year, a federal judge put wolves back on the endangered species list.
Since then, lawmakers from Michigan, as well as Minnesota and Wisconsin, have tried to tack on riders to various bills in Congress that would "de-list" the wolves. These moves are backed by farmers who say wolves are preying on their livestock.
But now, a new study indicates those farmers may be contributing to that predation problem. How? By not burying their dead cows.