Although a domestic animal, dogs can show their wild and aggressive side, simply because they are animals and their instinct, or nervous system react differently to certain situations. What is important to be mentioned and emphasised, is that there is a reason behind every aggressive behaviour. Whether you have adopted your dog as a baby, or as an older, it is crucial to explore and follow the development of his character and his nervous system. Do not let yourself be deceived that small breeds can’t be aggressive, or to believe that every breed which is considered aggressive is really such. There are many factors that determine the behaviour of your dog. First, we will list kinds of dog aggression.
There are: territorial, protective, possessive, fear, defensive, social, redirected, frustration-elicited, pain-elicited, predatory and sex-related aggression. Every single one of these kinds of aggression has its own characteristics, causes and consequences. In particular, dogs can be aggressive because they defend the territory they live on, they protect their offspring or owner, they are afraid, and so they use aggression as way of protection and defence. Also, dogs can be aggressive because they have been beaten, attacked or threatened. Social aggression is characteristic of dogs living in pack; they fight for dominance.
What you must take care of, is that your does not become aggressive because of your relationship with him. Some dogs need more time to start to trust in their owners; a single mistake, like pointed finger or taken food, can lead to aggression. Any of these kinds of aggression need training from professional trainer. There are two basic types of trainings: individual, when trainer is working only with one dog and boot camp, when the dog is being trained together with other dogs. Trainings include improving the mental and physical state, fear release, socialisation and obedience.