Field note. The colony has designated a fenced enclosure of trampled grass and instructed roughly forty thousand members to converge inside it and stand.
At the far end, a raised platform emits pressure waves at extreme amplitude. The waves are not aimed at any single organism. They are broadcast into the mass indiscriminately, and the mass responds in synchrony: forelimbs raised, torsos oscillating on a shared frequency, the entire assembly pulsing like a single distributed muscle.
I have measured the volume. It is sufficient to damage their auditory organs. They pay tokens to be here. They then insert small foam plugs to reduce the very stimulus they paid for. I cannot reconcile this and have logged it under unresolved.
Ambient temperature is high. Hydration is inadequate. The organisms have not consumed enough temperature-regulated liquid, and several have folded to the ground and been carried out by others. The mass closes over the vacancy immediately. It does not appear to notice loss.
They have coated their epidermis in reflective particulate and affixed lights to their skulls. In the dark they resemble a bioluminescent bloom, the kind that gathers to spawn once and disperse.
Correction to earlier hypothesis. I assumed the platform organisms were dominant and the mass subordinate, delivering tribute. But at the frequency's peak, forty thousand throats produce the identical vocalization without instruction, having somehow encoded it in advance. The platform is not commanding them. It is reciting something they already carry.
They came to hear it said aloud in a body large enough to feel it.
I have no instrument for this.
I stood at the fence longer than the survey required.