It examined the frequency of seven anxiety-related traits, including noise sensitivity, fear, aggression, separation problems and compulsive behaviour, as well as sub-traits within these categories, such as tail-chasing.

The survey looked at how cute participants found the photographs, and the level of cute aggression they experienced in response. (Picture: Getty)Stavropoulos said: ‘There was an especially strong correlation between ratings of cute aggression experienced toward cute animals and the reward response in the brain toward cute animals.

But aggression can be prevented if you start early socialisation and basic obedience training for your dog. • Dominance: Normally displayed towards other dogs, your pooch might become aggressive towards humans if he views them as part of his pack.

But sometimes the problems can occur when owners do not understand the dog’s normal social behaviour.Here are four things people need to know when it comes to dogs.PUNISHMENT IN TRAININGIn the past we used to believe that because dogs are ‘pack animals’ that they need to understand who is “boss” or dominant.