Sighthounds, also called gazehounds, are hounds that primarily hunt by speed and sight, instead of by scent and endurance, as scent hounds do. Appearance These dogs specialize in pursuing prey, keeping it in sight, and overpowering it by their great speed and agility. They must be able to quickly detect motion, so they've keen vision. Sighthounds must be able to capture fast, agile prey such as deer and hare, so they've a very flexible back and long legs for a long stride, a deep chest to suppo… (More on Sighthound)