which breed of dog is known for fast running
Though they are generally a healthy breed, Salukis can develop heart conditions such as cardiac tumors and cardiomyopathy; eye conditions such as cataracts; and cancers such as lymphoma and liver cancer. 1. Greyhounds. Known as the â45-mph couch potato,â the Greyhound is the fastest dog breed in the world. Its need for speed comes from a natural prey drive to pursue small game, and Greyhounds can achieve speed bursts of more than 40-mph.