"Hispid" refers to the coarseness of this pocket mouse's fur. Hispid Pocket Mice are larger and more robust than other pocket mice in their range, and like the others, they are solitary except in the breeding season. Learn more about the Chaetodipus hispidus, more commonly known as a Hispid Pocket Mouse, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.