Well, the appendix has gone from we don't know it's function, or it is a useless appendage, to it might have a role in our immune system [1]. [1] https://www.

Well, the appendix has gone from we don't know it's function, or it is a useless appendage, to it might have a role in our immune system [1]. [1] https://www.news-medical.net/health/Why-do-Humans-have-an-Appendix.aspx https://www.news-medical.net/health/Why-do-Humans-have-an-Ap...