Why would my dog fight with dogs he has never met?
Generally, most well socialized dogs strive to avoid physical or aggressive confrontation. Dogs use body language to communicate desire to interact or desire to avoid an aggressive encounter. Like people, not all dogs are natural or skilled communicators with members of their ow n species.
Aggression between unfamiliar dogs can be due to fear, poor communication, defensive, possessive behavior over resources (including perhaps family members or other pets) or territorial behavior over territory or owner. Aggression between dogs can result in injury to dogs and/or to the people trying to separate them. The behavior can consist of growling, snarling, barking, lunging, snapping, and biting (see Canine Communication – Interpreting Dog Language).
How do I recognize aggression resulting from poor communication between unfamiliar dogs?
This aggression can be elicited by assertive gestures or postures from either dog. These can include placing head or feet on the back of the other dog or other dominant body postures such as eye contact, and high tail and stiff-legged approach. If one of the two dogs does not show appropriate appeasing or submissive responses toward the other dog, then aggression might ensue. Owners may inadvertently heighten the anxiety and arousal by how they respond; pulling and tightening or correction with the leash or when they use threats or disciplinary techniques. These may signal to the dog that the impending approach is problematic. Leash restriction also does not allow the dog to react with a complete rate and range of responses, including body postures, approach and withdrawal. Some dogs may be uncertain how to communicate properly with other dogs. This may occur because of insufficient or inadequate socialization with other dogs or dogs of different types and breeds, or because of previous unpleasant experiences with other dogs, adding fear or anxiety components to the problem. Problems may escalate quickly in dogs that are anxious or fearful, and in dogs that lack good social skills with other dogs. For example, if assertive or dominant expressions and gestures, or highly excitable and overreactive displays frighten the other dog, aggression by one or both dogs may occur. Conversely, the signaling dog may not be reading the signals of the second dog and might increase the intensity of its displays, perhaps to the point of aggression, even when the other dog shows deferential behavior. This can lead to the second dog becoming defensively aggressive. Good communication within a social group of familiar dogs will result in a minimum of fighting, through actions, posturing, and visual and vocal signals, this does not necessarily work when unfamiliar dogs are meeting and greeting for the first time. In addition, changing circumstances and environments on walks, behavioral genetics, lack of sufficient socialization to other dogs, previous experience and the wide array of differences in physical appearance and behavior between breeds and individuals may compound the problem and increase the uncertainty and anxiety. Some extremely bold or assertive dogs will fight rather than back down when challenged. Assertive dogs may be overassertive and/or overprotective if the owners do not have good verbal and physical control. If the dog pulls the owners along during walks, it will take the lead in reacting to stimuli that it meets along the way, rather than looking to the owner for direction and reassurance. Other dogs may be in a state of conflict, in that they are friendly or socially attracted to the other dog, but uncertain or fearful of the possible outcome. These situations of conflict or uncertainty (competing emotions) can result in aggression (see Canine Communication – Interpreting Dog Language). This form of aggression is primarily exhibited when unfamiliar dogs are on the resident dog’s property, or what the aggressor considers his territory. Some dogs get highly aroused at the sight of other dogs on their territory and may jump fences, or go through windows or doors to get to the intruder (see Aggression – Territorial).
Causes
Dominance is the most common reason why dogs are aggressive toward other dogs. While it’s true that as pack animals, dogs are sociable, packs have hierarchies. And usually, an alpha establishes his dominance within a pack through either threat or physical harm. So if you’ve recently brought home a new pet, expect your older dog to show it’s in charge.
Expected Behavior: Walking through a doorway first, drinking or eating first, hard states, refusal to move from a sitting or sleeping spot, play fighting including mounting, being aloof.
What can you do? Remain calm, establish and enforce boundaries, counter-conditioning treatment or training.
When to get help: Lip curling, loud growling, constant barking, nipping or biting, lunging at the throat, abdomen, or back.
How to stop Dog Aggression quickly And easily – In a few steps!
Most pet parents know that some forms of aggression in dogs are normal. Hard stares or low growling when another animal comes near their food, for instance, is expected. Other forms of aggression, like lunging or snapping, are alarming.
But what causes extreme forms of aggression in dogs and what can be done about it, is something that baffles most pet parents.
If you’re looking to understand a recent change in your pet’s behavior, especially a sudden onset of aggression then we are here to help you understand the what and why.