Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from ...

Indeed, there is significant disagreement regarding the exact nature of the evolutionary forces that affected human skin color. These arguments make the first six chapters a compelling read.

Light helps explains the evolution of our skin color, why some of us have curly hair, and the size of our eyes. And light ...