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Would aliens evolve a method of communication other than speaking?

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Not a duplicate of "Overcoming language barrier; no speech" which confines answers to nothing that is clearly a form of communication; it focuses on translation, not physiology or evolution

Not a duplicate of "Where Speech is Impossible" which confines the scenario to sign language and asks for justification as to why that would be


Is it feasible for alien life forms to evolve intelligent communication other than"speaking" using sound waves and sensing "speech" by "hearing" those sound waves?

If so, what else is feasible?


To avoid broadness
I am asking for science as close to hard as you can get without needing math or citations; stick to realism, and explain ideas thoroughly. Consider basing answers on Earth species' communication systems as well.

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This post was sourced from https://worldbuilding.stackexchange.com/q/62986. It is licensed under CC BY-SA 3.0.

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