Omnibus--Of course we selectively bred dogs for a variety of purposes. We just didn't deliberately DOMESTICATE them. That happened as a result of natural human and dog interaction over time, not through a deliberate course of actions by either species. They evolved to become domesticated, in order to become the symbiotic species they are today. The original dogs looked much like dingos, much like feral dogs everywhere today--the medium-sized yellow dog. That's the natural dog prior to all selective breeding.