The Swamp Rabbit is the largest North American cottontail, but has relatively short ears in proportion to its size. It forages for grasses, sedges, some tree seedlings, and other plants in marshy lowlands of the south-central United States. Learn more about the Sylvilagus aquaticus, more commonly known as a Swamp Rabbit, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.