Dogs are said to be the most devoted companions that people may have. They express love like family members in addition to protecting the house. However, you've probably seen that dogs only bark at certain individuals, such as sweepers, rubbish vendors, intoxicated persons who are staggering, or random bystanders. Although this image is startling, dogs' unique psychological and sensory systems are concealed behind it.

Dogs understand your expressions
Dogs pay close attention to human body language.  A dog could find it frightening if someone walks rapidly, waves their hand abruptly, or looks directly into their eyes.  On the other hand, a calm and affectionate attitude makes the dog feel at ease and causes him to wag his tail rather than bark.
 
Smell determines a relationship.
Compared to humans, dogs have a far superior sense of smell.  They can identify the distinct aroma of every individual.  A dog may become alert and begin barking if someone's clothes have an odd or overpowering scent, such as alcohol, animal odor, or a potent perfume.  


Past events can also trigger
The dog has occasionally been frightened by someone before.  Because of its prior experiences, the dog becomes frightened and reacts right away if a new person smells the same or dresses same.  In a similar vein, if the dog has previously loved someone, it will recognize him and express satisfaction.
 
Dogs are also able to sense emotions.
Dogs are able to detect human emotions in addition to scents.  Dogs can experience anxiety in the same way that people do. Conversely, they perceive a calm, self-assured individual as secure.
 
Protect the area.
For a dog, their home, street, or territory is their own.  Their method of saying, "This is my place!" is to bark at a stranger to keep him away.


How to stop a dog from unnecessary barking?
Early socialization: To prevent your puppy from being fearful of strangers, expose him or her to a variety of people from the beginning.
 
Positive Training: Treat the dog and provide affection when it stays quiet.
 
Distract: Offer the dog a toy or play a game with him if he is barking too much.
 
Teach commands: To ensure the dog understands what you are saying, practice saying things like "calm down."
 
Their communication mechanism is barking.
 
Dogs use barking as a form of communication to convey feelings of fear, anxiety, security, or discomfort.  To establish a close and trustworthy relationship with them, we only need to be aware of their cues.


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