I've heard that people with blond hair usually have significantly more strands of hair. I searched around online, but I can't find anything outside of some unsourced answers to more more broad Q&A sites. Is there any proof that the number of hair strands or follicles are related to the color of your hair?
One example of such a claim is from StyleList:
Fun fact! Natural blondes have significantly more hair than brunettes, because evolutionary science tells us that hair evolved in part to protect our scalp from the sun's rays. With less pigmentation than brunettes, blondes developed more hair to get that protective barrier.