Woodrats are also known as Packrats, because they cache various manmade objects in their dens. This habit of collecting foreign objects is useful to scientists, who can place numbered sticks throughout an area and later open a den, record the numbers of the sticks the woodrat has carried home, and determine the size of the animal's home range. Learn more about the Neotoma albigula, more commonly known as a White-throated Woodrat, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.