Dr. Universe: Why do we have eyebrows?
seabertsonHumans have hair on their heads, arms, and even the face. If you feel your face, you might feel some small, fuzzy hairs on your cheeks and forehead. But the hair of your eyebrows is usually a bit thicker.
I asked my friend Mark Mansperger why we have eyebrows. He’s an anthropologist at Washington State University Tri-Cities.
Eyebrows appear to serve two main purposes, he said. One of the purposes of eyebrows is to keep » More …