Do you ever think about the reasons it’s so hard to engineer foods that reliably imitate high-calorie sources is because there’s no such thing as taste, your body is using chemical sensors evolved for hundreds of millions of years to directly identify high-priority nutrients.
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Oh wow. Interesting. Do they encounter high nitrogen environments underground?
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The point is low oxygen is a separate thing from high CO2, and they detect both, since both kinds are prevalent underground. This paper goes into some of the weeds on life underground: https://repositorio.uc.cl/bitstream/handle/11534/13023/Comparative%20respiratory%20strategies%20of%20subterranean%20and%20fossorial%20octodontid%20rodents%20to%20cope%20with%20hypoxic%20and%20hypercapnic.pdf?sequence=1 …
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Also do we know if they detect low oxygen or high nitrogen?
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