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Why does the puppy laugh?

1. Why does the puppy laugh?

The expression of puppy body language is very different from that of human beings, but puppies also show emotions such as happiness, satisfaction and excitement. Dog laughter is usually regarded as a language effort to express happy feelings to other dogs and their owners. However, in fact, the laughter of puppies is caused by a chemical called recombinant inhibitory protein (CGRP) in their bodies.

2. Puppy laughter is a reaction.

Puppy laughter is not a specific behavior, but a physical reaction. When they feel happy and satisfied, they may wag their heads and tail, make cheerful sounds, or slightly contract their facial muscles to form a "smile" expression. This reaction is a kind of nonverbal cooperative behavior, which produces intimacy between puppies.

3. The nervous reaction of the puppy to laugh

Neuroscientists have found that when puppies laugh, their brains actually send nerve signals to facial muscles through reflex motivation.

Recombinant inhibitory protein is very important in regulating the formation of smile. When this chemical is secreted in large quantities in their bodies, their nervous system will start and make their facial muscles smile.

4. The puppy's psychological reaction to laughter.

Psychological reactions related to smiles have nothing to do with expressions, because their eyes may be normal. Puppy's eyes are a mixed signal different from human's. If the dog's smiling expression is composed of smiling expression, erect ears and crooked head, it may be that they have a peaceful mentality when interacting with people.