Without a doubt, everyone knows of someone who needed to have his or her appendix removed. Certainly, this begs the question, “What does the appendix do?” Although some people might seem as though they have had their brain removed, that is not a realistic procedure; nor can one have his or her heart removed. Many organs can be transplanted, to be sure, but why do we human beings have an organ that we can simply do without? Plenty of organs can be removed without fatal consequences, but there are almost always consequences. Yet this is not the case with the appendix.