(Special to The Root) — Skin color is one of our most important biological traits. Its many shades evolved as humans moved far and wide into regions with different intensities of sunlight. Skin color ...

"Our approach involved genome-wide association studies of skin color from more than 1,500 eastern and southern African individuals as well as scanning the genome to identify genetic variants that are ...

Biology -- Skin's natural palette -- Original skin -- Out of the tropics -- Skin color in the modern world -- Shades of sex -- Skin color and health -- Society -- The discriminating primate -- ...