I found a slug last month: https://en.wikipedia.org/wiki/Elysia_chlorotica
practices something called kleptoplasty or karyoklepty, might give someone ideas
https://en.wikipedia.org/wiki/Karyoklepty
You might find the use of the word “klepto” a bit forward, assuming, loaded, biased or western-headed, and you’d be right to have that reaction. When endosymbiosis was introduced as a way to augment the “survival of the fittest” story of evolution, it was brutally attacked by the establishment as, my word, hippy-dippy:
full story:
hope that helps someone!
oh, here’s the video on endosymbiosis the above video mentions:
Bye!