Preamble to the dog's journey through time -- Immediate ancestry -- Evidence of dog domestication and its timing : morphological and contextual indications -- Domestication of dogs and other organisms -- The roles of dogs in past human societies -- Dogs of the Arctic, the Far North -- The burial of dogs, and what dog burials mean -- Why the social bond between dogs and people? -- Other human-like capabilities of dogs -- Roles of dogs in recent times -- Epilogue : one dog's journey.