More than that, some scientists think that it was the partnership with dogs that gave us the advantage over neanderthals. Without dogs, homo sapiens might not have been the human species that won.<p>I&#x27;ve seen pretty good arguments that unlike with all other domesticated animals, with dogs we and the animal domesticated each other and since then have co-evolved. For instance, some attribute our terrible sense of smell (compared to other primates) to our relationship with dogs. With dogs as hunting partners, we didn&#x27;t need great smell. So we developed more toward contributing smarts and sight to the human&#x2F;dog hunting team.