Additionally, dogs have an exceptional sense of smell, which allows them to detect changes in our body chemistry that occur with different emotions. For instance, when humans are stressed, they may emit certain pheromones that dogs can pick up on, leading them to respond in a comforting manner.
Training and socialization also play a significant role in how well a dog can understand human emotions. Dogs that are frequently exposed to different people and environments tend to develop better emotional intelligence. For example, a well-socialized dog may approach a person who is upset and offer comfort by nuzzling or staying close, while a less socialized dog might not know how to react.
In summary, dogs understand human emotions through a combination of facial recognition, body language interpretation, and scent detection, all of which are enhanced by their socialization experiences.
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