The Potamodytes beetle creates an underwater respiratory bubble via Bernoulli's principle.

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References

"One beetle, Potamodytes tuberosus, contrives to get the pressure in the bubble below atmospheric, taking advantage of the pressure drop attending fluid flow. That makes gas (at atmospheric partial pressure) move into the bubble, which can thus act as a permanent lung (Stride 1955). But it works only in very shallow water (about 4 centimeters) and very rapid flows (over 1 meter per second)." (Vogel 2003:100)

Book
Comparative Biomechanics: Life's Physical World, Second EditionJune 17, 2013
Steven Vogel

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Living System/s

Organism
BeetlesColeopteraOrder

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