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The hard part here would be that the medium this civilization lives in would be fairly disturbing. Ocean currents can fluctuate easily in certain spots, creating chaotic flows. Maelstroms and other...
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#1: Attribution notice removed
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System
·
2020-06-01T14:13:39Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/3853 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/