User blog comment:Kirbyna321/Hetalia Characters and Rant/@comment-301602-20140718160447/@comment-5898252-20140720074046

Well, technically the more northern the nation is, the more likely it is that the majority of the population is blonde with pale skin and blue eyes, as their body releases less melanin. It doesn't mean that everyone has blonde hair and blue eyes, but the likelyhood of people with blonde hair and blue eyes increases.