Sepia Rainbow-map

Sepia Rainbow-map

map of UV levels at Earth's surface

Artist's rendition of a map created by Penn State anthropologists Nina Jablonski and George Chaplin showing predicted skin colors of indigenous people based on levels of ultraviolet radiation from the sun. The map's predictions correlate very well with observed skin tones.

IMAGE: Cut-paper illustration by Gail McCormick, from map by Nina Jablonski and George Chaplin.