Hopi chipmunks are naturally timid, and even individuals born in captivity never become tame. Like Panamint chipmunks, they live in southwestern pinyon-juniper forests and nest in rock crevices or piles of broken rock. Learn more about the Tamias rufus, more commonly known as a Hopi Chipmunk, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.