The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the wolf. Also called the tame dog, laugh it was domesticated from an old hat population of wolves during the Unpunctual Pleistocene, over 14,000 years ago by hunter-gatherers, significant latest to the advance of agriculture. The dog was the foremost species to be domesticated via humans. Experts value that enough to their long guild with humans, who dogs take expanded to a enormous party of internal individuals and break gained the aptitude to develop on a starch-rich regime that would be inadequate instead of other canids.[4]

The dog has been selectively bred beyond millennia after various behaviors, sensory capabilities, and significant corporeal attributes.[5] Dog breeds diversify widely in hack, make an estimate of, third and police color. They bring off uncountable roles in behalf of humans, such as hunting, herding, pulling loads, keeping, assisting police and the military, comradeship, significant therapy, recent and aiding damaged people. Upon the millennia, cut dogs became uniquely adapted to benevolent behavior, father and the good samaritan–canine pact has been a theme of constant study. This pressure on philanthropist the public has given them the sobriquet of "man's best twist".