It's weird how many practices involve cutting off parts of the body. Like tonsils, or appendixes. You'd think nature and evolution wouldn't give us 'extra' body parts...
I mean, if there is a problem, of course you remove them. But I don't think we'd evolve parts we don't need. Unless it's somehow vestigial? I think they did find out though, that tonsils and the appendix do serve a (albeit small) purpose. They both bolster the immune system and combat certain infections. Perhaps why they get infected themselves.
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