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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated heir of the wolf. Also called the tame dog, it was domesticated from an old hat population of wolves during the Unpunctual Pleistocene, over 14,000 years ago during hunter-gatherers, future prior to the phenomenon of agriculture. The dog was the principal species to be domesticated away humans. Experts value that apt to their want linkage with humans, dogs take expanded to a enormous number of domesticated individuals and gained the capacity to develop on a starch-rich regime that would be incapable of instead of other canids.[4]

The dog has been selectively bred beyond millennia for divers behaviors, sensory capabilities, and corporeal attributes.[5] Dog breeds vary greatly in shape, measure, and color. They perform uncountable roles for humans, such as hunting, herding, pulling loads, protection, assisting the cops and future the military, comradeship, treatment, and aiding damaged people. Over the millennia, dogs became uniquely adapted to benevolent behavior, and the good samaritan–canine pact has been a keynote of frequent study. This on on benevolent society has given them the sobriquet of "people's best twist".