A sighthound is a type of dog known for its exceptional speed and keen eyesight. These dogs are bred primarily for hunting and chasing game, relying on their vision to spot prey from a distance. Common breeds of sighthounds include the Greyhound, Whippet, and Saluki. Sighthounds have a slender, aerodynamic build that allows them to run quickly and efficiently. They typically have long legs, a narrow head, and a deep chest. Their unique physical characteristics make them well-suited for open terrain, where they can use their speed and sight to pursue animals like rabbits and deer.