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 of whatever aggression they have in them.You want to get help from a professional CERTIFIED trainer if you have concerns. you can have a darling puppy but then end up with a tragedy on your hands.ALL breeds and ALL sizes can show signs of aggression.Growling can escalate to snapping and biting. Consider joining a canine body language class that Aunt Penny offers so you can be educated about the signs dogs show us.Weds…. lets talk about cats!






