Symmetry appears in creatures that spawn out sperm into the sea and let it land where it may, and many other very simple life forms with non-sexual reproduction

Symmetry appears in creatures that spawn out sperm into the sea and let it land where it may, and many other very simple life forms with non-sexual reproduction, or reproduction where attraction isn't a factor, as in most plants. I'm sure symmetry may also add attractiveness as a kind of fitness display, but it's a much more fundamental thing since it's also present in life forms like plants which do evolve through sexual selection but without animalian fitness displays, and in non-sexually reproducing life forms.