The “pain grimace” is quite similar in many mammals, but where did it come from and why do we do it? … More Why do We and Other Animals Wince When in Pain?
Summary The shape and structure of the human face varies much more among individuals than do the faces of other species, even compared to species that have far more genetic diversity. The shapes of human faces vary more in the population than does any other physical feature. This high degree of facial diversity, which cuts … More The Stunning Diversity of Human Faces