Your new nickname might as well be "Cheshire Cat" the way you'll be cheesin' at this toast night-light and these shark slippers.

If you're a pet parent, you know that animals can smile. Dogs smile when they're happy, and so do cats. Even if science doesn't agree that animals can smile, animal lovers everywhere know it's true!

Personifying cars by giving them a face isn't actually weird. Designers intentionally shape headlights, grilles, and intakes to create a distinct character. Research on product "facial" expressions ...

It’s Friday, which may prompt a smile from you because it’s, you know, Friday. And “Everybody's lookin' forward to the weekend,” as that 2011 Rebecca Black song goes. But on this particular Friday, ...

Within 400 milliseconds, your brain and face begin responding to another person's smile, setting off a cascade that researchers are only beginning to understand.