Alpha Dog to Omega Dog each dog follows the order.
With that said...
Submission and Dominance seems to be a nature wide event... even my Lizards bob there head and wave there arms to make themselves look bigger and to assert themselves.. They also turn DARK colors, and will even fight to the death over social order. In fact it seems that only us americans view sexual relationships as each equal... and that has only been recently...
I am starting to think that the New social order impossed by societty that forces many people into avoiding dominance and submission is the leading cause of many devorces. I have never heard of a D/s relationship that after collaring has failed... then again... Many people have a view of this type of relationship as a way to follow a life of Hedonisim and pleasure... and when things get tough, and the pleasure gos away, theese people leave...