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A recent study encompassing some 9,000 dogs conducted at the University of Helsinki demonstrated that fearfulness, age, breed, the company of other members of the same species, and the owner's previous experience of dogs were all associated with aggressive behaviour towards humans.The findings published in the journal Scientific Reports can potentially provide tools for understanding and preventing aggressive behaviour. Aggressive behaviour in dogs can include growling, barking, snapping and biting. These gestures are part of normal canine communication, and they also occur in non-aggressive situations, such as during play. However, aggressive behaviour can be excessive, making the dog a health threat to both humans and other animals."Understanding the factors underlying aggressive behaviour is important. In what kinds of circumstances does aggressive behaviour occur and what is the dog's motive for such behaviour? In normal family dogs, aggressive behaviour is often unwanted, while some dogs with official duties are expected to have the capacity for aggressiveness. At the same time, aggressiveness can be caused by welfare issues, such as chronic pain," says doctoral researcher Salla Mikkola from the University of Helsinki.The canine gene research group active at the University of Helsinki surveyed connections between aggressive behaviour and several potential risk factors with the help of a dataset encompassing more than 9,000 dogs, a sample from a larger dataset from a behavioural survey dataset of nearly 14,000 dogs. The study investigated aggressiveness towards both dog owners and unfamiliar human beings. Dogs were classified as aggressive if they growled often and/or had attempted to snap at or bite a human at least occasionally in the situations described in the survey."Dogs' fearfulness had a strong link to aggressive behaviour, with fearful dogs many times more likely to behave aggressively. Moreover, older dogs were more likely to behave aggressively than younger ones. One of the potential reasons behind this can be pain caused by a disease. Impairment of the senses can contribute to making it more difficult to notice people approaching, and dogs' responses to sudden situations can be aggressive," Mikkola adds.Small dogs are more likely to behave aggressively than mid-sized and large dogs, but their aggressive behaviour is not necessarily considered as threatening as that of large dogs. Consequently, their behaviour is not addressed. In addition, the study found that male dogs were more aggressive than females. However, sterilisation had no effect on aggressive behaviour.The first dogs of dog owners were more likely to behave aggressively compared to dogs whose owners had previous experience of dogs. The study also indicated that dogs that spend time in the company of other dogs behave less aggressively than dogs that live without other dogs in the household. While this phenomenon has been observed in prior research, the causality remains unclear."In the case of dogs prone to aggressive behaviour in the first instance, owners may not necessarily wish to take a risk of conflicts with another dog," Mikkola muses. Significant differences in aggressive behaviour between breeds. Differences in the aggressiveness of various dog breeds can point to a genetic cause."In our dataset, the Long-Haired Collie, Poodle (Toy, Miniature and Medium) and Miniature Schnauzer were the most aggressive breeds. Previous studies have shown fearfulness in Long-Haired Collies, while the other two breeds have been found to express aggressive behaviour towards unfamiliar people. As expected, the popular breeds of Labrador Retriever and Golden Retriever were at the other extreme. People who are considering getting a dog should familiarise themselves with the background and needs of the breed. As for breeders, they should also pay attention to the character of dam candidates, since both fearfulness and aggressive behaviour are inherited," says Professor Hannes Lohi from the University of Helsinki.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Lifestyle :Dogs' aggressive behavior towards humans often caused by fear

A recent study encompassing some 9,000 dogs conducted at the University of Helsinki demonstrated that fearfulness, age, breed, the company of other members of the same species, and the owner's previous experience of dogs were all associated with aggr ...