The American marten (Martes americana) is a small carnivorous mammal belonging to the Mustelidae family, which also includes weasels, otters, and ferrets. Here are some key points about American martens, one of our favorite animals: Appearance: The American marten has a slender body with short legs, pointed ears, and a bushy tail. Its fur varies from yellowish to dark brown, depending on the individual and its location. The animal's throat and chest are usually lighter in color. Size: Typically,