Functional Features: The Evolution of the Human Face
Many species depend on scent to identify individuals, but humans tend to rely on facial recognition. So while you might mutter about the shape of your mouth, our varied facial features allow us to differentiate one from another. Michael J. Sheehan, co-author of a study published in Nature Communications this week, explains how human social interaction may have been the reason faces evolved to be unique.
Michael Sheehan is a NIH postdoctoral fellow at the Museum of Vertebrate Zoology at the University of California, Berkeley in Berkeley, California.