Animalia, Arvicolinae, Cervidae, Chordata, Cricetidae, Mammalia, Muroidea, North America, Ondatra zibethicus, Rodentia, USA, Wisconsin, animal, c, chew, chewing, environment, habitat, mammal, muskrat, natural, nature, north american, north woods, northern, northwoods, pink nose, rat, rodent, teeth, unusual, water, wetland, white patch, wild, wildlife