It also is possible (perhaps probable) that humans have inadvertently
selected for dominance aggression among some pure-breed dogs. A high
proportion of the mating within any one breed is accomplished by the few
males who are consistent “winners” in the show ring. For many breeds,
the show standards require the dog to readily display dominant postures
(e.g. upright body posture, ears and tail erect, weight forward, etc.). Thus,
the readiness to display or learning to