Next week I’ll be heading to the Big City for a few medical appointments. Chances are great that I’ll be having my gallbladder removed. (Not fun, but not nearly the major surgical procedure my mother went through forty years ago. Where she spent a seek in the hospital, had difficulty getting around for a while, and now sports a 14” scar, I’ll be out in less than a day, have three or four little incisions, and go home with a few Band-Aids and a bottle of Ibuprofin.) This isn’t the first body part I’ll have removed. I had wisdom teeth taken out while in college and some troublesome…ahem…girl parts were disposed of a few years ago. I have kept some original inventory that many others have had removed: tonsils, adenoids, appendix.
Some of the organs/parts we have don’t seem to serve much of a function nowadays. This http://science.discovery.com/top-ten/2008/organs/organs.html is a nice rundown. Will humans eventually evolve without some of them? Will we lose more body hair but gain head hair because shampoo companies and The Hair Club for Men will convince us we must breed with full-hair-headed mates?
And what about organs like my troublesome gallbladder? Sure, it’s useful in digesting fats, but I can live without it. With enough time, and maybe a drastic change in diet, will it eventually become like the appendix? (Side note: I would LOVE to be able to do a pre-emptive removal of useless organs that are only remaining to cause trouble. That’s right, I’m looking at you appendix and gallbladder!)
So if these leanings of evolution continue, perhaps eventually humans will be smooth-bodied (but with flowing head hair), appendix- and gallbladder-free, and 28-toothed.