<P> Males are usually 71 to 76 centimetres (28 to 30 in) tall at the withers, and weigh on average 27 to 40 kilograms (60 to 88 lb). Females tend to be smaller, with shoulder heights ranging from 68 to 71 centimetres (27 to 28 in) and weights from less than 27 to 34 kilograms (60 to 75 lb). Greyhounds have very short fur, which is easy to maintain . There are approximately thirty recognized color forms, of which variations of white, brindle, fawn, black, red and blue (gray) can appear uniquely or in combination . Greyhounds are dolichocephalic, with a skull which is relatively long in comparison to its breadth, and an elongated muzzle . </P> <P> Greyhounds can be aloof and indifferent to strangers, but are affectionate with their own pack . They are generally docile, lazy, easy - going, and calm . </P> <P> Greyhounds wear muzzles during racing, which can lead some to believe they are aggressive dogs, but this is not true . Muzzles are worn to prevent injuries resulting from dogs nipping one another during or immediately after a race, when the' hare' has disappeared out of sight and the dogs are no longer racing but remain excited . </P> <P> Contrary to popular belief, adult Greyhounds do not need extended periods of daily exercise, as they are bred for sprinting rather than endurance . Greyhound puppies that have not been taught how to utilize their energy, however, can be hyperactive and destructive if not given an outlet, and therefore require more experienced handlers . </P>

This dog is one of the oldest of the greyhound breeds