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Dog breed
Dog breeds are dogs that have relatively uniform physical characteristics developed under controlled conditions by humans, with breeding animals selected for phenotypic traits such as size, coat color, structure, and behavior. The Fédération Cynologique Internationale recognizes over 400 pure dog breeds.
Other uses of the term breed when referring to dogs may include pure breeds, cross-breeds, mixed breeds and natural breeds.
==History==
Archaeology has revealed dog remains of various sizes but there does not appear to have been distinctive breeds until 3,000-4,000 years ago when greyhound-type dogs were depicted on pottery and paintings in Egypt and Western Asia. Mastiff-type dogs were kept for guarding and hunting, and short-legged dogs were also bred. By Roman times, most of the breed-types known today were well-defined and their qualities and functions recorded. Dog breeds proliferated in Europe during the Middle Ages 700 years ago.〔Clutton-Brock, J., 1995. Origins of the dog: domestication and early history. In:Serpell, J. (Ed.), The Domestic Dog, its Evolution, Behaviour and Interactions with People. Cambridge University Press, Cambridge, pp. 7-20〕 Most modern dog breeds are the products of the controlled breeding practices of the Victorian era (1830-1900), and the accurate documenting of pedigrees with the establishment of the English Kennel Club in 1873 in imitation of other stud book registries for cattle and horses.
: ''For early depictions of dogs in art, see early history.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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