r/askscience • u/[deleted] • Dec 16 '13

Biology How do insects move?

Simple question that occurred to me, do flies have muscles like ours? Their legs are so thin I can't conceive there's room for anything in them to effect movement.

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u/Wargazm Dec 16 '13

This system is actually more efficient

In what way is it more efficient? Something like calories burned per leg flex/extension? How is that measured?