Hot peppers contain a chemical called capsaicin and capsaicin is an oil-based chemical that only mammals can sense, human have special taste buds on our tongue that mammals have, that when we actually ingest capsaicin it registers in the brain as painful and hot that causes us to have a reaction to the capsaicin that then makes us feel hot, get sweaty, pain and uncomfortable or some people like spicy who feels comfortable, that is why we sense capsaicin as what it it but to anything other than a mammal, what is capsaicin? It’s simply an oil and that is all it is, therefore crab feels nothing basically.
