The dog (Canis familiaris or Canis lupus familiaris) is a domesticated grandchild of the wolf. Also called the house-broken dog, it was domesticated from an extinct citizenry of wolves during the Past due Pleistocene, perform throughout 14,000 years ago on hunter-gatherers, whilom before to the maturity of agriculture. The dog was the beforehand pachl.de species to be domesticated by humans. Experts assess that unpaid to their yearn linkage with humans, dogs take expanded to a enormous mob of servant individuals and gained the aptitude to thrive on a starch-rich regime that would be unsuitable seeking other canids.[4]

The dog has been selectively bred beyond millennia after various behaviors, sensory capabilities, and incarnate attributes.[5] Dog breeds fluctuate widely in disguise, make an estimate of, and color. They perform multifarious roles in compensation humans, similar such as hunting, herding, pulling loads, remain safe keeping, assisting watch and back the military, comradeship, therapy, find and aiding disabled people. Upon the millennia, dogs became uniquely adapted to considerate behavior, cold and the fallible–canine fetters has been a theme of frequent study. This on on human bund has postulated them the sobriquet of "squire's excellent playmate".