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i didn't think that video would be so interesting. so it is a volume constraint? why don't other bugs do this? just hold more liquid? or do they face other constraints that cicadas don't have?

Very curious.

constraints meaning those that would influence evolution ofc

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Warning, the video is footage of cicadas peeing. It's not a physics diagram or animation of the fluid dynamics involved.

Why is this a warning? I'm very confused, is it somehow "inappropriate"?

Some people on this site could be triggered, aroused, or subject to monitoring and adverse action by their employer by viewing such content.

I hope you are joking but at this point I don't know anymore.

I mean, I wasn't offended, but I was also expecting a diagram and was a little surprised to just see high quality cicada piss footage.

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