Causes of Dog Aggression
Many animals show aggressive behaviors for a variety of different reasons. Originally, aggression in domestic dogs was actually a positive trait. The reason was because the owners wanted dogs to protect them and their property. However, these aggressive traits are very unpredictable and often lead to problems. To understand why canine aggression is so unpredictable, let's first look at the types of canine aggression.
For many dogs, they have a natural instinct to hunt. With this type of aggression, dogs will not give any warning signs before they do strike. Unfortunately, many times children and other pets fall victim to this type of behavior.
Many veterinarians and their staff have to deal with aggression that is caused by fear. Animal hospitals aren't the only place fear-induced aggression is displayed. Any time an animal feels trapped with no means to escape, they will automatically fight back. This is a survival instinct.
Other reasons may include sudden, loud noises and children. One common reason is when the dog fears other people. It could even just be characteristics of other people such as wearing a hat, a uniform, or even the site of a rolled newspaper being delivered. These may be triggered by past experiences.
Punishment aggression can be similar to fear-induced and pain-induced aggression. If an owner chooses physical punishment, such as spanking the hindquarter, this could cause an aggressive reaction from the dog. No physical punishment is ever recommended for any animal, especially with dogs. Some owner take the physical punishment too far by kicking, slapping, or punching the animal. This is considered abuse and is strongly unacceptable.
Even if you use the isolation method, such as crating or isolating in a room, some dogs will act out because they do not want to be isolated. More often this occurs from using crates that are simply too small and uncomfortable for the dog.
Most animals display aggression when they are in pain. This is why you should always approach an injured animal with the utmost caution. In fact, dog fighting utilizes pain-induced aggressions to keep the fight going.
Injury isn't the only reason for this type of aggression. Sometimes dogs may have a painful skin irritation, internal medical condition, or simply afraid a veterinarian procedure such as vaccinations.
Canines naturally have a pack hierarchy mentality. One dog will be more dominant and be considered the leader of the pack whereas the other dogs are considered subservient and will follow the dominant dog. For domestic dogs, humans serve the dominant role of the pack leader. However, there are times when dogs will challenge the pack leader whether it is canine or human. Dominance aggression has warning signs such as growling, snapping, or biting before it escalates to a full fight. Many times this occurs when a human persists to assert their dominance over the dog.
Dogs can be quite territorial. Some dogs may growl, bark, or bite anyone unfamiliar to them that gets too close to the yard, house, or their human family. Many times dominance aggression is mistaken for territorial aggression. You would probably think that when a dog growls when you come too close to their food bowl while they are eating would be territorial aggression, but it's not.
Some owners unknowingly reinforce aggressive behaviors. These owners will give into the dog by allowing the dog to have what it wants at the first sign of aggression. Unfortunately some owners even teach or encourage aggressive behaviors, especially for dog fighting.
Another example of learned aggression is responding to a dog's aggression with negative punishment techniques. This will reinforce fears and create phobias in the dog. Nonetheless, the dog's aggression problems will worsen.
Types and Causes of Dog Aggression
Type of Aggression
Cause of Aggression
hunting prey for food or sport
fear of something, such as the vet
Alpha mentality; wanting to show that it is the one in charge
to show something is theirs and to back off, such as food, family, and their yard
dog fighting, negative reinforcements
Body Language That Signals Aggressive Behavior
Animals often use body language to communicate. In fact, the most common body language used in animals is to show aggression or displeasure in something. Dogs are no exception. Dogs have many ways in which they give warnings of aggression and a possible impending attack. This is referred to as dog signalling. Although each dog has its own combination of signalling depending on the breed and what is causing the aggressive behavior, here are some of physical signs to look for that signifies that your dog is upset or angry.
- lips curled; snarling teeth
- nose wrinkled
- ears back
- fur, also known as hackles, raised along their back, especially between the shoulders and right before the tailbone
- tail tucked
- front half of body lowered
- pupils dilated
By understanding different types of aggressions dogs display, you will be better equipped to correct the behavior. Many dogs will be grateful to have an understanding owner that is better equipped to help them learn and grow into a loving dog that will become truly man's best friend.
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© 2014 L Sarhan