The whippet is a British breed of medium-sized dog, of the sighthound type, related to the larger greyhound and the smaller Italian greyhound. Apart from the differences in height, the whippet closely resembles these two breeds; it has sometimes been described as "miniature greyhound", and casually referred to as "the poor man's racehorse".[7] It is kept as a companion dog, for competitive showing, as well as for amateur racing. Whippet also participate in dog sports such as lure coursing, agility, and flyball.[8] It has the highest running-speed of any breed in its weight and size range, and may have the fastest idle-to-running acceleration of any dog.[9] Whippet is known for its gentle, affectionate, and calm temperament, being relaxed and serene at home while showing high energy and excitement outdoors.[10]
The breed's name, ‘whippet’, is derived from an early seventeenth-century word (now obsolete) meaning "to move briskly".[11]
There has been some continuity in describing greyhound-types of different sizes — large, medium and small, recorded in hunting manuals and works on natural history from the Middle Ages. Edward of Norwich, 2nd Duke of York, confirmed in his early 15th-century translation of (and additions-to) an original, late 14th-century French Livre de chasse the advantages of maintaining the ‘great’, the ‘middle’, and the ‘small size of greyhound’ for different sorts of game.[12] The English physician and academic John Caius refers in his 16th century De Canibus Britannicus to lesser as well as greater sorts of Leporarius, Grehounde (greyhound)[13] and notably to a type which has been connected to the whippet, the tumbler, a lesser sort of mungrell greyhounde and excellent warren dog for catching rabbits,[14] also recorded by the early 19th-century Scottish curator and editor Thomas Brown.[15] The Victorian English writers describe an emerging modern breed of whippet, or snap-dog, bred for catching rabbits, coursing competitions, straight rag-racing, and for the novel show fancy.[16][17][18]
^Beckett-Bradshaw, A., 2019 The merle color pattern in the whippet. Sighthound Review (10) 1 Spring p108
^Borge, K. S.; Tønnessen, R.; Nødtvedt, A.; Indrebø, A. (2011). "Litter size at birth in purebred dogs—A retrospective study of 224 breeds". Theriogenology. 75 (5): 911–919. doi:10.1016/j.theriogenology.2010.10.034. PMID21196028.