Northern Pygmy Mice are the smallest rodents in North America. They live in a variety of habitats where there is dense ground cover and eat grass seeds and leaves, prickly pear cactus fruit and stems, mesquite beans, and granjeno berries (granjeno is an evergreen shrub). Learn more about the Baiomys taylori, more commonly known as a Northern Pygmy Mouse, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.