The Shiba Inu smiles because of its simple muscular structure. The Shiba Inu’s head muscles are simple and cannot make various expressions, so it can only convey its emotions of happiness, anger and sadness through its body movements. In fact, the Shiba Inu’s true happiness is not “smiling”, but wagging his tail and tongue. Shiba Inu smiles because of heat dissipation Shiba Inu not only often “smiles” but sometimes smiles while sticking out his tongue, but in fact, Shiba Inu is not really smiling at this time, he is simply sticking out his tongue to dissipate heat. The Shiba Inu will smile because the environment forces the Shiba Inu to have rich emotions and a strong learning ability. When it grows up in an expressive human environment, receives training, and then grows up, it will naturally be forced to learn skills such as smiling in order to receive human love and food rewards; and humans will also dote on the Shiba Inu because of its cuteness and give it various human expressions.
