Dogs submit to humans because from the beginning the human takes the place of a dominant boss in front of the dog. If a human were not to do this, he would be unable to integrate in a peaceful way with his or her animal. Two dogs of the same sex that live in the same home learn to accept a person as their dominating superior, but between both the dogs there will possibly be fights to see which one of them will take the superior position. This is instinctive behavior to see which is the strongest and weakest, the youngest and the oldest, and if allowed, the dog will do this to a human that did n
ot know how to defend his position. A dog that has taken over a human will be very difficult to train and control. Marking a territory is an instinct that is seen in almost all animals, starting from big mammals to birds, insects and fish. A domesticated dog also follows this instinct and takes possession over his owner's house
as if it were his own territory, defending it with hostile manifestations depending on his capacity, size, and breed. Dogs also mark their territory through urine and feces defending it from other animals, especially those of his same species, although they will allow other dogs
to live in that same territory and other animals as long as they do not dispute territorial rights. As we all know it seems that dogs
stop at every corner to leave some of their urine and we could suppose that they are marking their territory. However, there are people that believe that they are communicating with other dogs
and letting them know they were there, then when another dog comes by he smells and leaves his message as if answering back. Who knows?