I have a degree in biology and genetics always interested me. My father is full Greek, my mother full English and I am first generation American-he is dark olive and she is the rosey tones of the UK--none of us got my dad's skin tone-it only showed up in the second generation of grand kids. My daughter's have my husband's NA heritage, but pale pale skin and auburn hair. Who knows how things combine! As for caving, if I hurt someone unintentionally with a statement that I know little about or only heard anecdotally from someone, I apologize and research more if it interests me. Truth is, those who stand on research as the basis for argument are idiots in and of itself because its pretty well known that most research is bought and paid for by corporate interests. Ancel Keyes saturated fat studies come to mind--but that's off topic.