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So having the toughest skin would allow for reentry. Getting out of the atmosphere and moving through space is another matter, but this is your creature in your world that you are building. If you ...
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#1: Attribution notice removed
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System
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2021-03-30T23:53:18Z (over 3 years ago)
Source: https://worldbuilding.stackexchange.com/a/62591 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/