Maine is home to six weasels including fishers, martens, ermine, long-tailed weasels, mink, and river otters, each adapted to specific habitats within the region. Fishers, primarily found in dense forests, are active mostly around dawn and dusk and do not hibernate, preying on a variety of animals and occasionally nuts and fruits. Marten and mink, also forest dwellers, hunt both on land and in water, while ermine and long-tailed weasels display seasonal changes in fur. River otters, the largest of Maine’s weasels, thrive in aquatic environments. This diversity showcases a unique aspect of Maine’s wildlife ecosystem.