In fact, there may be at least three times more recognizable human facial expressions than previously thought, the researchers said.

From happy to disgustedly surprised, scientists have identified 21 different facial expressions. The research, which was carried out using new computer software, more than triples the long ...

Recognize these feelings? He's happily disgusted, left, and sadly fearful, right. A computer program recognizes 21 distinct facial expressions. Today You know that feeling when someone lets you ...