Photo of a beaver on land, chewing on a log

    American Beaver

    Castor canadensis
    Photograph of a muskrat standing on grass

    Common Muskrat

    Ondatra zibethicus
    Nutria in wetland habitat

    Nutria (Coypu)

    Myocastor coypus
    invasive icon

    Invasive

    Image of woodchuck (groundhog)