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• 13:00 @mcahogarth Well, what would a human with no internal skeleton and chitinous skin look like? #
• 13:03 @mcahogarth Don't forget that insects breathe through tube openings either in their sides or feet. #
• 13:03 @mcahogarth Insects are small because the exchange medium takes up too much space at large sizes; no lungs, just tubes. #
• 13:08 @mcahogarth Of course, since there's no internal skeleton, all you're left with to hang things around is figuring out how the muscles work #

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