Universal wing- and fin-beat frequency scaling

In summary, "Universal wing- and fin-beat frequency scaling" explores the relationship between the frequency of wing and fin beats in various species of birds and aquatic animals. The study identifies a consistent scaling law across different taxa, suggesting that body size and locomotor mode significantly influence the frequency of these movements. By analyzing the biomechanics and evolutionary adaptations of these organisms, the research provides insights into the underlying principles governing their locomotion and highlights the universality of these patterns in evolutionary biology.
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Filip Larsen
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Good to know the power of dimensional analysis is still able to find gold:
We derive an equation that applies for the wing-beat frequency of flying animals and to the fin-stroke frequency of diving animals like penguins and whales. The equation states that the wing/fin-beat frequency is proportional to the square root of the animal’s mass divided by the wing area. [...] the constant of proportionality is to a good approximation the same across all species
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0303834
journal.pone.0303834.png
 
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What I find astonishing here is that flying through air and swimming through a heavy viscous fluid land on the same curve.
 
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