 Analysis of moose skulls documents a 16% shrinkage likely consistent with warming winters which are correlated with smaller brain size in one-year-old moose.The moose population has tripled in the past decade, reaching about 1,600 in the 2017 survey, but as wolf die off approaches, competition for food due to overpopulation will become a further stress on moose.In March 2018, with the release of the final Environmental Impact Statement, the NPS formally proposed to relocate 20 to 30 wolves to the island over a three-year time period, starting immediately.