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How can I achieve this[?] Make them cavemen. Cerebrospinal fluid (CSF) keeps the brain in neutral buoyancy, effectively lessening its weight against itself. This means that the brain can be h...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:46Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/29134 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/