Not the poster obviously, but I'm going to give my two cents on this.
Obviously the phrase "they're living creatures" is a bit vague on this; bacteria and molds (and arguably viruses) are also living creatures but I don't think anyone considers it genocide to disinfect your counter with alcohol or something. I think we generally start drawing lines with animals.
Even within the scope of animals, I think we can still make reasonable concessions on things that are of sufficiently low intelligence to where we're not even 100% sure they feel pain in the same way that we do. Do I care if a mosquito suffers? No, not really, they're annoying dangerous little critters who aren't really having a lot of intelligent thought.
However, when we start getting into mammals (and possibly birds), I think it starts getting into more questionable territory. Most mammals (as far as I know) do have enough neural development to feel pain, to feel fear, and actually suffer in ways not completely dissimilar to humans. Since mice are mammals, there is an argument to be made that if we're hurting them, it's adding a lot of pain to the world.
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To be clear, I'm somewhat in the camp of "they're just mice, I care about helping humans more". I just wanted to play devil's advocate for a bit.
Obviously the phrase "they're living creatures" is a bit vague on this; bacteria and molds (and arguably viruses) are also living creatures but I don't think anyone considers it genocide to disinfect your counter with alcohol or something. I think we generally start drawing lines with animals.
Even within the scope of animals, I think we can still make reasonable concessions on things that are of sufficiently low intelligence to where we're not even 100% sure they feel pain in the same way that we do. Do I care if a mosquito suffers? No, not really, they're annoying dangerous little critters who aren't really having a lot of intelligent thought.
However, when we start getting into mammals (and possibly birds), I think it starts getting into more questionable territory. Most mammals (as far as I know) do have enough neural development to feel pain, to feel fear, and actually suffer in ways not completely dissimilar to humans. Since mice are mammals, there is an argument to be made that if we're hurting them, it's adding a lot of pain to the world.
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To be clear, I'm somewhat in the camp of "they're just mice, I care about helping humans more". I just wanted to play devil's advocate for a bit.