A Work In Progress

People are walking biomes if u think about it

Parasites and other symbiotes (*symbiosis is actually an umbrella term that includes parasites, before anyone asks) outnumber free living organisms in both species and individual numbers, meaning that the *norm* for life on earth is to live your whole life in or on another creature. Us larger independent beasts are technically special in having adapted to survive the harsh non-living world; to gut bacteria and mites and parasitic worms we're like planets keeping them safe from an immense deadly void.

Btw I wasn't just talking about parasites and symbiotic organisms, i was also thinking about human cells too, like they aren't colony organisms so they can't survive on their own but they also do interact with each other in cool ways and drive the systems that keep us alive like a huge web

Yes considering our cells are just like the individual protozoa us animals descended from, your entire body is living beings stacked together like a "colony" of trillions :)