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Most prehistoric Europeans had dark skin, hair and eyes well into the Iron Age, about 3,000 years ago, new research finds.
Scientists found that the genes that cause lighter skin, hair and eyes emerged among early Europeans only about 14,000 years ago, during the late stages of the Paleolithic period — also known as the "Old Stone Age." But these light features were only sporadic until relatively recently, said study senior author Silvia Ghirotto, a geneticist at the University of Ferrara in Italy.
Lighter skin may have carried an evolutionary advantage for Europeans because it enabled people to synthesize more vitamin D — needed for healthy bones, teeth and muscles — in Europe's weaker sunlight. But lighter eye color — blue or green, for example — does not seem to have had major evolutionary advantages, and so its emergence may have been driven by chance or sexual selection, Ghirotto told Live Science in an email.
Scientists found that the genes that cause lighter skin, hair and eyes emerged among early Europeans only about 14,000 years ago, during the late stages of the Paleolithic period — also known as the "Old Stone Age." But these light features were only sporadic until relatively recently, said study senior author Silvia Ghirotto, a geneticist at the University of Ferrara in Italy.
Lighter skin may have carried an evolutionary advantage for Europeans because it enabled people to synthesize more vitamin D — needed for healthy bones, teeth and muscles — in Europe's weaker sunlight. But lighter eye color — blue or green, for example — does not seem to have had major evolutionary advantages, and so its emergence may have been driven by chance or sexual selection, Ghirotto told Live Science in an email.
