Study Reveals Natural Selection's Role in Red Hair and Vitamin D Adaptation
A new study led by Harvard University researchers has uncovered that natural selection has played a more significant role in human evolution than previously thought. The research, which analyzed ancient genomes from nearly 16,000 individuals over the last 10,000 years, found that gene variants linked to red hair and pale skin were among those selected for survival. These traits may have been favored due to their role in vitamin D absorption, particularly as human diets shifted from hunting to farming. The study identified 479 genetic variants that have been strongly selected for or against, offering new insights into human evolutionary history. 
