For thousands of years, humans have selectively bred dogs to fulfill specific roles, ranging from guarding and hunting to herding and companionship. This deliberate shaping of traits has resulted in ...
Introduction: The beginnings -- 1. The spaniels of San Marcos : what is a dog and who cares? -- 2. Cooperation between species -- 3. Homo canis : why humans are different than all other primates -- 4.
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