Sighthounds are a group of dog breeds known for their exceptional speed and keen eyesight. They were originally bred for hunting game by sight rather than scent, making them unique among other dog types. Common breeds in this category include the Greyhound, Whippet, and Saluki. Their slender bodies and long legs enable them to run at high speeds, often reaching up to 45 miles per hour. These dogs are typically gentle and affectionate, making them great companions. Sighthounds require regular exercise to maintain their health and happiness, but they are also known for their love of lounging around the house. Their calm demeanor and low grooming needs make them suitable for various living situations.