Hi there. So my puppy isn't even one year old, he's pretty big and he's really aggressive and nervous. We have two older dogs, a female 11 year old Labrador Retriever and a 7 year old male dog we picked up from the street when he was little. As I said, this Labrador is really nervous and very aggressive to the other two. He has attacked them on several occasions and we really don't know what else to do because we can't find a proper trainer to help us. We have considered castrating him but we've been told that it's not a guaranteed solution.
Please help me out! Thanks in advance
Please help me out! Thanks in advance