Dog smile at owner is real smile

Science people say dogs really do use facial expression with humans in special way. Soft eye. Open relaxed mouth. Whole face going from 'alert wolf cousin' to 'friend shaped cloud.'

Some researchers think dogs even evolved extra facial muscle around the eyes to communicate better with us. That means thousands of years of partnership may have literally shaped the puppy face. This is both adorable and strategic.

Now, is dog smile exactly same as human smile? Probably not. Dog are dog. Human are confused upright ape. But a relaxed happy dog face paired with tail wag and whole-body wiggle is not fake. That is real feeling coming through real dog equipment.

Anyone who has come home tired and been greeted like lost hero already knows the study result. Dog do not care about your inbox. Dog care that you came back. Dog face says so immediately.

Man trust many science thing. But on this subject man was early adopter. Dog smile is real enough. Maybe more real than many human meeting smile.