Prairie dog and Clark in 1804. Lewis described it in more detail in 1806, calling it the "barking squirrel". On average, these stout-bodied rodents will grow to be between long, including the short tail, and weigh between . Sexual dimorphism in body mass in the prairie dog varies 105 to 136% between the sexes. Among the species, black-tailed prairie dogs tend to be the least sexually dimorphic, and white-tailed prairie dogs tend to be the most sexually dimorphic. Sexual dimorphism peaks during weaning, when the females lose weight and the males start eating more, and is at its lowest when the females
Prairie Dog Town Fork Red River merging with Buck Creek and forming the Red River proper, south-southwest of Hollis, Oklahoma. When the Prairie Dog Town Fork crosses the 100th meridian at the eastern edge of Childress County, its south bank becomes the state boundary between Texas and Oklahoma. According to a 1959 decision by the United States Board on Geographical Names, this main tributary of the Red River is properly called the Prairie Dog Town Fork Red River, and should not be called the Prairie Dog Town Fork of the Red River, Prairie Dog Town Fork of Red River, or the South Fork of the Red