People all over the world display primary emotions using the same facial expressions: smiles for happiness, furrowed brows for anger, or curled upper lips for contempt. people all over the world are also quite accurate at decoding these emotional expressions. according to evolutionary psychologists, why is this?

Explanation:

A visual exchange of a message is the fastest form of communication. With the help of an expression the emotions of a person can be understood easily. The quality of an interaction is reflected on the faces of the people involved in the interaction.

Evolutionary psychologists, theorize that this characteristics evolved in humans as it is best suited for the nomadic way of life. Also, it helps people judge a threat better and protect oneself from danger.