I have golden retriever he is 1 year old now . He just starts to bark when he sees other dogs walking down both with humans and street dogs . His hairs from neck to back completely stands with that aggression. Not able to understand why he does this and how it can be stopped ? Kindly help
If this has started recently, you should try to understand if your pet is feeling threatened by other people or dogs. If so try to socialize him more to get used to it. It can also be hormonal aggression, if behaviour modification is not helping you can consider getting him neutered.