Greyhounds were originally bred as hunting dogs to chase hare, foxes, and deer. Canines in this dog breed can reach speeds of 40 to 45 miles per hour, making them the Ferraris of the dog world. Not surprisingly, Greyhounds made a name for themselves as racing dogs and are still used in racing today. They also participate in many other dog sports, including lure coursing, conformation, obedience, and agility. Beyond their grace and speed, people love them for their sweet, mild nature. Whether or not you’ve seen one in the flesh, you know what a Greyhound looks like. The iconic hound with the aerodynamic build epitomizes speed with his narrow head, long legs, and muscular rear end. We’ve all seen images of this sprinter, if only through seeing it plastered on the side of a bus, but many of us don’t truly know the breed.