Why Keep an Organ That Can Kill You?

Why Keep an Organ That Can Kill You?. Darwin dismissed the appendix as a useless leftover—yet it can kill you when inflamed, keeps reappearing in mammal evolution, and scientists still cannot agree what it is actually for.Gut-microbiome research is rewriting old textbook claims about “vestigial” organs, and anyone who has had appendicitis still asks the same blunt question: why do we keep this…