The Big-eared Kangaroo Rat has the longest ears of any kangaroo rat, and weighing in at about 85 g, is one of the largest Dipodomys species in California. It is dark cinnamon in color, with white underparts and brown ears. Learn more about the Dipodomys elephantinus, more commonly known as a Big-eared Kangaroo Rat, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.