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The origin of domestication is unknown. The dog is likely to be most widely distributed and variably used domesticated animal. It assists hunting, draws sledges in Northern parts of the Soviet union and America, a hairless type is bred for producing food in Mexico and elsewhere, while the specialized purposes for which dogs have been used are too numerous to mention.
Now they differ considerably in colour, form, size, etc. from their related wild forms.
Domestication of cattle has had varying degrees of success, from half-wild buffaloes to the tame British Jersey.
Domestication of animals is more than taming.
The origin of domestication is unknown.