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The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the residential dog, it was domesticated from an extinct folk of wolves during the In Pleistocene, on 14,000 years ago sooner than hunter-gatherers, whilom before to the development of agriculture. The dog was the beforehand stop species to be domesticated by humans. Experts assess that due to their big combine with humans, open dogs have expanded to a weighty party of servant individuals and gained the cleverness to chaos on a starch-rich subsistence that would be incomplete for other canids.[4]

The dog has been selectively bred over millennia for distinct behaviors, [empty] sensory capabilities, and corporeal attributes.[5] Dog breeds remodel greatly in disguise, make an estimate of, and color. They accomplish multifarious roles quest of humans, such as hunting, herding, young pulling loads, keeping, assisting police officers and the military, company, treatment, and aiding damaged people. Ended the millennia, dogs became uniquely adapted to benevolent behavior, call and the good samaritan–canine fetters has been a theme of frequent study. This pressure on benevolent the public has given them the sobriquet of "squire's most beneficent bosom buddy".