Mech (1987?) reported that young wolves showed preference for whichever adult wolf was most effective in a particular task of hunting food; E.g. Best adult male when hunting large game such as deer, and most effective adult female when hunting small game such as mice - which require very different tactics and strategies. It seems that transferring that genetic predisposition to humans was a high probability during doggish self-domestication. Further, those humans who bonded with particular dogs would likely be able to offer their canid companions food treats and amusement on a more regular continuing basis than adult dogs in the absence of humans -- so per premises of Konrad Lorenz domestic dogs would genetically automatically tend to show a preference for human company as compared to fellow canids lacking opposable thumbs to carry about and/or purchase treats for companion doggies (as reported by modern peer reviewed reports). Thus it seems per Lorenz that prehistoric wolf ancestors were genetically preprogrammed to adopt humans as more amusing and economically advantageous compared to adult canids; in addition to any advantages of reciprocal dietary options during famines such as severe winters & ice ages.