Check out Friedrich Dahl's haircuts throughout his career:
Friedrich Dahl had various haircuts during his career. He was widely known as a world-class zoologist and arachnologist. Nevertheless, the German arachnologist was mostly known for his unusual sense of fashion and his delightful personality. Before his death at age 73 he was frequently talked about in the press because of his superb looks. Check out Friedrich Dahl's former hairstyles right here: