The next time you make an angry face, you may be comforted to know that the elements of that face are built into our genetic makeup.
Researchers at UC Santa Barbara in collaboration with Australia's Griffith University have identified the functional advantages behind the face. The findings are in the current edition of the journal Evolution and Human Behavior.
The scientists say every aspect of the angry face—from your mouth up to your eyebrows—is aimed at intimidating your subject. The look has evolved to make you look stronger.