The Tennessee Bobtail is a naturally occurring short-tailed mutation appearing originally in east Tennesee in the early 1980's. The short tail is caused by a dominant gene. These cats come in a variety of colors. Generally they are taller and more lanky than another well-known stort-tailed variety, the American Bobtail. Eyes are set at a slight angle, and ears are high on the head. These cats are affectionate and outgoing. They make great pets. Cats come in both long- and short-haired varieties.