Can't help but show this to you guys. The fact that a bacteria can be housed in algal cells which can be partially digested and utilized by a sea slug should be a big deal. It means it's possible to incorporate every biological superpower out there.
Furthermore, the genus of that sea slug is in itself a biological plot-device because they integrate the photosynthetic ability of the algal cells they eat into their own animal cells.
If that's not enough to make you jealous of these slimy creatures, just remember that we have already made a new species in the lab, we have made inorganic cells, and one day we'll be able to put all these together and... you decide.