These shrews live in deserts, but they seek out moister microhabitats within them, such as brush piles or fallen logs. They have been found in beehives, and their tiny, golfball-sized nests have been found in dens built by and sometimes still occupied by woodrats. Learn more about the Notiosorex crawfordi, more commonly known as a Crawford's Gray Shrew, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.