Aren't all people on this planet women or a mutation of a woman? It's something I've been thinking about since I studied biology in school. If women have XX chromosomes and men have XY, why couldn't we say that men are half women because of the X chromosome? The reverse doesn't work. Besides, I understand that the Y chromosome is a mutation of the X chromosome. It's also assumed that all fetuses are female, and that's why men have nipples too. #animals