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.

A group of Japanese scientists have conjured up a way to attach living skin to robot faces to make them more lifelike. The skin equivalent is a “living skin model composed of cells and extracellular ...

Imagine meeting someone new whose smile feels just a bit wrong. You might think, "this smile is too fast (or slow, or crooked ...