AGGRESSION can begin to develop…..
Between 9-12 months is when you may see signs of aggression in a puppy.This is due to the beginning of sexual maturity,along with the hormones.There is another phase you may see aggression come out again. During the 18 month ( late adolescence) you may notice more assertion,independence,and aggression.By two years of age most dogs will have shown their full extent…


