Page "Hypothetical types of biochemistry" Paragraph 10

One of the major sentient species in Terry Pratchett's Discworld universe are the " Earth "- based ( ranging from Detritus to Diamond ) Trolls.

Fred Hoyle's classic novel The Black Cloud features a life form consisting of a vast cloud of interstellar dust, the individual particles of which interact via electromagnetic signalling analogous to how the individual cells of multicellular terrestrial life interact.