
Butterflies create a pocket of air by cupping and clapping their wings together and this air escapes rapidly to produce a jet for rapid take off or evasion.
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Butterflies create a pocket of air by cupping and clapping their wings together and this air escapes rapidly to produce a jet for rapid take off or evasion.
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[Paper (open)](https://royalsocietypublishing.org/doi/10.1098/rsif.2020.0854)