Smile | A Moment of Science - Indiana Public Media

Can you tell if someone is smiling even if you aren't looking at them, but just hearing their voice?

Have you watched a baby smile and simply fallen in love? It turns out there's some cool science behind why a baby's smile is so heart-warming!

If you have a dog, you may have noticed that sometimes it seems to be smiling. Of course, we know that dogs don't really smile, right?

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