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简介：aaaDogshavelongbeendependablecompanionsbyoursides.Butitwasn’talwaysthatway,andalookattheirclosestlivingrelative,thewolf,makesitclearwhy.Researchintodogdomesticationandintelligenceofferscluesintothehuman-dogrelationship.Andanalyzingdogs’brainactivityandgenesmayevenhelpanswerwhetherdogsareinitforthefood—oriftheyreallyloveus.