Headscratchers / The Silence (2019)

• What on earth did the vesps subsist on while living underground? Sustaining a species of such immense size would have required an equally immense food source (and, it's implied, one that can be hunted by sound). The incredible scarcity of energy resources means cave-dwelling life is, by necessity, physically small and of very low population. On top of that, they also have to leave behind enough meat to lay their eggs on.
  • There is actually a cave system with a thriving ecosystem. It's called Movile Cave, and is mentioned on the main page under Aluminum Christmas Trees. Now, the bit about laying their eggs in corpses, and there being enough in that cave system for that, might be a harder sell
    • The creatures living in Movile Cave are tiny organisms like pseudoscorpions, spiders, and snails, preying on creatures of similar size. While the home caves of the vesps aren't really explained in depth, it's a bit of a different story to be able to support gigantic predatory chiroptera in sky-blanketing numbers.
• Considering they will mindlessly swarm any source of noise without any regard to the danger it presents, such as fires or wood chippers, how did the vesp "invasion" not end within a few very messy hours?
  • Probably because the vesps are a previously-undiscovered species that humanity never encountered before their cave was stumbled upon. Plus, in all the chaos their initial appearance and attacks caused, people were too terrified to think straight.
    • This doesn't change the fact that the vesps swarm toward whatever makes the loudest noise. Things that make loud noise tend to be dangerous — explosions, farm equipment, factory machinery, fires, wood chippers. With everyone panicking, there would be more fires and explosions. With no apparent self-preservation instinct, the vesps would be a largely self-disposing problem
    • Fires, machinery, and other inanimate structures and phenomena react the same way whether they have previously encountered the creatures mindlessly flinging themselves against them or not.

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