Eusocial colonies as individual, sentient organisms

An idea I'm toying with for a sci-fi story is a species where the individual organisms are colonies of smaller eusocial organisms. The idea initially came from "hey if a bunch of single-celled organisms can stick together and that colony eventually evolve into larger multicellular organisms, can that jump be made again?" I've tried to find information about this - environmental factors that could contribute to this, what these greater organisms would be like, and, possibly, could they get to a point where they could create languages, cultures, societies, etc. All I've found is people bringing up the idea, but not expanding on it. Any ideas for how I could get this to work from a biological standpoint?

posted over 4 years ago

amara‭

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