https://ocw.mit.edu/courses/2-a35-biomimetic-principles-and-design-fall-2013/external-resources/flying-and-swimming-animals-cruise-at-a-strouhal-number-tuned-for-high-power-efficiency_2e0ca20e-6a0d-4c6d-8405-fa30de67bb20/
Flying and Swimming Animals Cruise at a Strouhal Number Tuned for High Power Efficiency |...
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https://eunis.eea.europa.eu/species/259141
Sphaeromides bureschi - Strouhal, 1963
Sphaeromides bureschi belongs to the Invertebrates group