I have read in several places that it is the nature of the breed to protect it's loved ones and I am sure this is what your puppy is doing. As long as you are making sure to socialize your dog I wouldn't worry too much. My 4 month pup too has suddenly developed a new barking sensation. He loves everyone. He is not very discerning when it comes to who gives him love and attention but when he is at home, and he hears the door opening he will stop whatever he's doing (including sleeping),bark and run to the door. He will do this if I go downstairs and come back up after a while because he hears someone downstairs. I think it is quite normal and feel proud that he has this capacity. As long as he is not growling or trying to bite someone, I would not take this as an aggressive behavior. |