Today, dogs live alongside humans all across the globe, often as an integral part of our families. To many people, a world without dogs is unthinkable. And yet dogs today unwittingly find themselves on the verge of a crisis, struggling to keep up with the ever-increasing pace of change in human society. Until just over a hundred years ago, most dogs worked for their living. Each of the breeds or types had become well suited, over thousands of years and a corresponding number of generations, to the task for which they were bred. First and foremost, dogs were tools. Their agility, quick thinking, keen senses, and unparalleled ability to communicate with humans suited them to an extraordinary diversity of tasks—hunting, herding, guarding, and many others, each an important component of the economy. In short, dogs had to earn their keep; apart from the few lapdogs who were the playthings of the very rich, the company that dogs provided would have been incidental; rewarding, but not their raison d’être.
