Well, for example, I believe that exposure to dangerous levels of nuclear radiation does not induce pain in humans. It would seem that mammals, at least, have encountered fire enough as an evolutionary pressure to develop a specific reaction to it. I’m having trouble finding a video of a lobster walking near an open fire, it would be instructive to see its reaction. Does anyone own a lobster as a pet and is willing to perform an experiment for us? You don’t need to hurt the lobster.
> It would seem that mammals, at least, have encountered fire enough as an evolutionary pressure to develop a specific reaction to it.
What specific reaction are you referring to? Fire isn't the only natural source of heat. Why is evolutionary pressure from fire required for animals to evolve a sense of "something is too hot"? Why is it not sufficient for animals to evolve this due to e.g. exposure to sunlight, with the same mechanism being triggered through fire?
Subjectively, as a human, it seems like the pain of being burned is qualitatively a different type of sensation from e.g. being warmed by sunlight.
So the lobster feeling that they should ideally move to cooler water makes sense. Evolutionarily it wouldn’t surprise me if they don’t feel like they are in an emergency situation in the same way that a human would if they are standing in a fire.
I think you misunderstood me, or I just wasn't explicit enough. I was talking about humans being burned by natural things other than flames. From my (admittedly limited) experience, being burned by a flame or by a hot surface or a hot liquid isn't qualitatively different. Even sunburn (the aforementioned exposure to sunlight) feels similar if bad enough.
Got it, yes-- I definitely agree that a sensation can be cross-triggered by conditions other than the evolutionary pressure conditions.
Is there a "dangerous heat" environmental candidate for lobsters that we can speculate could be sensory-cross-triggered by boiling water? Underwater lava?
