Some #insects support passive #breathing via tracheae through #active #respiratorymovements, nsmed #convectiveventilation. Muscle contractions cause motions that e.g. dilate the #spiracles, allowing more efficient #gasexchange. The same time, the process also serves #thermoregulation. My example, the #robberfly #Tolmerus #cingulatus, demonstrates this #behavior.

Please watch my YouTube video; my channel needs more views.
youtu.be/zSOdFZF18yk?si=J67MJA

©#StefanFWirth #Berlin2025

#Photos
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@stefanfwirth Video Feedback- Not bad. What more... Voice needed - or some relativity to me, us,

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