Here is our first tool to getting that answer: imagining the point of view of the dog. The scientific study of animals was changed by a German biologist of the early twentieth century named Jakob von Uexküll. What he proposed was revolutionary: anyone who wants to understand the life of an animal must begin by considering what he called their umwelt (OOM-velt): their subjective or “self-world.” Umwelt captures what life is like as the animal. Consider, for instance, the

