The range of emotions of a dog, a dog smiles, gif video
In fact, the theory that a dog is an emotional animal was confirmed by scientists not so long ago – at the beginning of the last century. Studies have shown that a pet, like a person, can be sad, have fun, be nervous, feel a sense of guilt and shame. Moreover, all these dog feelings are capable of expressing with the help of facial expressions, which means that they know how to smile. True, the owners still do not always correctly recognize such signals.

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