State wildlife officials have now killed a total of 180 brown bears on Southwest Alaska caribou calving grounds in just over a year as part of a contested strategy to restore the renowned Mulchatna herd. State wildlife officials have now killed a total of 180 brown bears on Southwest Alaska caribou calving grounds in just over a year as part of a contested strategy to restore the renowned Mulchatna herd. Ecology Phys.org – latest science and technology news stories