Human facial expressions differ from those of animals in the degree to which they

makes nearly all the rich elements of human expression needed to establish a

makes nearly all the rich elements of human expression needed to establish a

Gestures and facial expressions may assist a child in mastering his native language.A．Righ

Darwin considered （continuity) or similarity of （expression) （of) animals and human beings

We can use our eyes and facial expressions to communicate virtually every______nuance of e

A facial expression results from one or more motions or positions of the muscles of the fa