Facial expressions are a tool for better communication.
In the Scientific American Magazine you can always be sure to come across a few interesting articles and such was the case with “Facial Expressions,” an article published just this month by Kate Wong. The article discusses the well optimized arrangement of muscles on our face in order to enable us to better find food. However, this arrangement on the face has another role, that of communication. Humans have very expressive faces, which convey a whole array of emotions, and researchers have said that our ability to make facial expressions has to do with the unique facial muscles in that area.