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ProdglArchitect
Guest
You’ll have to cite a couple of examples, because I am unaware of any.
The ability of those animals to survive without pain is a direct response to the environment in which they live, as well as their particular evolutionary tract. If other animals existed in similar situations, where there are few things external to themselves that they need to be concerned with, then yeah, they could theoretically also exist without the need for pain receptors.
However, most animals do not live in environments mostly devoid of external stimuli. Most animals are probably also a lot more complex than the ones to which you are referring. With complexity comes a greater need for awareness of how all of the parts are functioning. This, in turn, requires the development of a more complex nervous system, which then results in pain. The less complex the nervous system, the less likely pain is, but the more complex the life form, the more complex the nervous system needs to be.
The ability of those animals to survive without pain is a direct response to the environment in which they live, as well as their particular evolutionary tract. If other animals existed in similar situations, where there are few things external to themselves that they need to be concerned with, then yeah, they could theoretically also exist without the need for pain receptors.
However, most animals do not live in environments mostly devoid of external stimuli. Most animals are probably also a lot more complex than the ones to which you are referring. With complexity comes a greater need for awareness of how all of the parts are functioning. This, in turn, requires the development of a more complex nervous system, which then results in pain. The less complex the nervous system, the less likely pain is, but the more complex the life form, the more complex the nervous system needs to be.