Dog - Wikipedia
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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of wolves. Also called the domestic dog, it was selectively bred during the Late Pleistocene by hunter-gatherers. Dogs and the modern gray wolf share a common ancestor. [4]
Dog | History, Domestication, Physical Traits, Breeds, & Facts | Britannica
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dog, (Canis lupus familiaris), domestic mammal of the family Canidae (order Carnivora). It is a subspecies of the gray wolf (Canis lupus) and is related to foxes and jackals. The dog is one of the two most ubiquitous and most popular domestic animals in the world (the cat is the other).
Dog breed - Wikipedia
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A dog breed is a particular type of dog that was purposefully bred by humans to perform specific tasks, such as herding, hunting, and guarding. Dogs are the most variable mammal on Earth, with artificial selection producing upward of 360 globally recognized breeds. [1]
Dog Fact File | Mammals | BBC Earth
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Often described as man’s best friend, dogs have lived alongside us as treasured companions for 35,000 years. With over 400 distinct breeds, no other land mammal comes close to such variety in size and appearance.
Dog - Breeds, Temperament, History | Britannica
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Dog - Breeds, Temperament, History: There are about 400 breeds of purebred dogs worldwide. A purebred dog has a genealogy that can be traced for three generations within the same breed.