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This article is about the domestic dog. For other uses, see Dog (disambiguation).
Domestic dogFossil range: Late Pleistocene – Recent
A Labrador RetrieverConservation statusDomesticated
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Canidae
Genus:Canis
Species:C. lupus
Subspecies:
C. l. familiarisTrinomial nameCanis lupus familiaris(Linnaeus, 1758)
Synonyms
These are INVALID scientific names for historical interest only:aegyptius (Linnaeus, 1758), alco (C. E. H. Smith, 1839), americanus (Gmelin, 1792), anglicus (Gmelin, 1792), antarcticus (Gmelin, 1792), aprinus (Gmelin, 1792), aquaticus (Linnaeus, 1758), aquatilis (Gmelin, 1792), avicularis (Gmelin, 1792), borealis (C. E. H. Smith, 1839), brevipilis (Gmelin, 1792), cursorius (Gmelin, 1792), domesticus (Linnaeus, 1758), extrarius (Gmelin, 1792), ferus (C. E. H. Smith, 1839), fricator (Gmelin, 1792), fricatrix (Linnaeus, 1758), fuillus (Gmelin, 1792), gallicus (Gmelin, 1792), glaucus (C. E. H. Smith, 1839), graius (Linnaeus, 1758), grajus (Gmelin, 1792), hagenbecki (Krumbiegel, 1950), haitensis (C. E. H. Smith, 1839), hibernicus (Gmelin, 1792), hirsutus (Gmelin, 1792), hybridus (Gmelin, 1792), islandicus (Gmelin, 1792), italicus (Gmelin, 1792), laniarius (Gmelin, 1792), leoninus (Gmelin, 1792), leporarius (C. E. H. Smith, 1839), major (Gmelin, 1792),mastinus (Linnaeus, 1758), melitacus (Gmelin, 1792), melitaeus (Linnaeus, 1758), minor (Gmelin, 1792), molossus (Gmelin, 1792), mustelinus (Linnaeus, 1758), obesus (Gmelin, 1792), orientalis (Gmelin, 1792), pacificus (C. E. H. Smith, 1839), plancus (Gmelin, 1792), pomeranus (Gmelin, 1792), sagaces (C. E. H. Smith, 1839), sanguinarius (C. E. H. Smith, 1839), sagax (Linnaeus, 1758), scoticus (Gmelin, 1792), sibiricus (Gmelin, 1792), suillus( C. E. H. Smith, 1839), terraenovae (C. E. H. Smith, 1839), terrarius (C. E. H. Smith, 1839), turcicus (Gmelin, 1792), urcani (C. E. H. Smith, 1839), variegatus (Gmelin, 1792), venaticus Gmelin, 1792), vertegus (Gmelin, 1792)[1]
The dog (Canis lupus familiaris)[2] is a domesticated subspecies of the gray wolf, a mammal of the Canidae family of the order Carnivora. The term encompasses both feral and pet varieties and is also sometimes used to describe wild canids of other subspecies or species. The domestic dog has been one of the most widely kept working and companion animals in human history, as well as being a food source in some cultures. There are estimated to be 400 million dogs in the world.[3]
The dog has developed into hundreds of varied breeds. Height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; and, coats can be very short to many centimeters long, from coarse hair to something akin to wool, straight or curly, or smooth.[4] It is common for most breeds to shed this coat, however some non-shedding
A Labrador RetrieverConservation statusDomesticated
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Mammalia
Order:Carnivora
Family:Canidae
Genus:Canis
Species:C. lupus
Subspecies:
C. l. familiarisTrinomial nameCanis lupus familiaris(Linnaeus, 1758)
Synonyms
These are INVALID scientific names for historical interest only:aegyptius (Linnaeus, 1758), alco (C. E. H. Smith, 1839), americanus (Gmelin, 1792), anglicus (Gmelin, 1792), antarcticus (Gmelin, 1792), aprinus (Gmelin, 1792), aquaticus (Linnaeus, 1758), aquatilis (Gmelin, 1792), avicularis (Gmelin, 1792), borealis (C. E. H. Smith, 1839), brevipilis (Gmelin, 1792), cursorius (Gmelin, 1792), domesticus (Linnaeus, 1758), extrarius (Gmelin, 1792), ferus (C. E. H. Smith, 1839), fricator (Gmelin, 1792), fricatrix (Linnaeus, 1758), fuillus (Gmelin, 1792), gallicus (Gmelin, 1792), glaucus (C. E. H. Smith, 1839), graius (Linnaeus, 1758), grajus (Gmelin, 1792), hagenbecki (Krumbiegel, 1950), haitensis (C. E. H. Smith, 1839), hibernicus (Gmelin, 1792), hirsutus (Gmelin, 1792), hybridus (Gmelin, 1792), islandicus (Gmelin, 1792), italicus (Gmelin, 1792), laniarius (Gmelin, 1792), leoninus (Gmelin, 1792), leporarius (C. E. H. Smith, 1839), major (Gmelin, 1792),mastinus (Linnaeus, 1758), melitacus (Gmelin, 1792), melitaeus (Linnaeus, 1758), minor (Gmelin, 1792), molossus (Gmelin, 1792), mustelinus (Linnaeus, 1758), obesus (Gmelin, 1792), orientalis (Gmelin, 1792), pacificus (C. E. H. Smith, 1839), plancus (Gmelin, 1792), pomeranus (Gmelin, 1792), sagaces (C. E. H. Smith, 1839), sanguinarius (C. E. H. Smith, 1839), sagax (Linnaeus, 1758), scoticus (Gmelin, 1792), sibiricus (Gmelin, 1792), suillus( C. E. H. Smith, 1839), terraenovae (C. E. H. Smith, 1839), terrarius (C. E. H. Smith, 1839), turcicus (Gmelin, 1792), urcani (C. E. H. Smith, 1839), variegatus (Gmelin, 1792), venaticus Gmelin, 1792), vertegus (Gmelin, 1792)[1]
The dog (Canis lupus familiaris)[2] is a domesticated subspecies of the gray wolf, a mammal of the Canidae family of the order Carnivora. The term encompasses both feral and pet varieties and is also sometimes used to describe wild canids of other subspecies or species. The domestic dog has been one of the most widely kept working and companion animals in human history, as well as being a food source in some cultures. There are estimated to be 400 million dogs in the world.[3]
The dog has developed into hundreds of varied breeds. Height measured to the withers ranges from a few inches in the Chihuahua to a few feet in the Irish Wolfhound; color varies from white through grays (usually called blue) to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; and, coats can be very short to many centimeters long, from coarse hair to something akin to wool, straight or curly, or smooth.[4] It is common for most breeds to shed this coat, however some non-shedding
Etymology and related terminology
The English word dog can be traced back to the Old English docga, a "powerful breed of canine".[5] The term may derive from Proto-Germanic *dukkōn, represented in Old English finger-docce ("finger-muscle").[6] Due to the linguistically archaic structure of the word, the term dog may ultimately derive from the earliest layer of Proto-Indo-European vocabulary, reflecting the role of the dog as the earliest domesticated animal.[7]
The English word hound is cognate to other Germanic terms, including German Hund, Dutch hond, common Scandinavian hund, Icelandic hundur which, though referring to a specific breed group in English, means "dog" in general in the other Germanic languages. Hound itself is derived from the Proto-Indo-European *kwon-, which is also the direct root of the Greek κυων (kuōn) and the indirect root of the Latin canis through the variant form *kani-.[8]
In breeding circles, a male canine is referred to as a dog, while a female canine is called a bitch. The father of a litter is called the sire, and the mother of a litter is called the dam. Offspring are generally called pups or puppies until they are about a year old. A group of offspring is a litter. The process of birth is whelping. Many terms are used for dogs that are not purebred.[9]
