Has anyone suggested a parasitism gameplay mechanic yet? I think parasites could be useful as potential precursors to organelles. Take Rickettsia for example; they are related to mitochondria and they probably have a few similarities as well. So instead of spending your time looking for a potential endosymbiont, they may just find you along the way.
Also; here’s something interesting: a parakaryon! It’s a specimen found in a deep sea vent that is neither a prokaryote nor a eukaryote (as we know it).
I’m going to share this post of mine as a supplement, if anyone is interested: