Which parts of the human body could you design better?
November 5th, 2007 -- by Augie De Blieck Jr.
Diabetics will like this answer:
The pancreas is a completely crummy organ, without a stem cell population to help regenerate it after being damaged, that eventually craps out in nearly every human with age. I would give the pancreas a stem cell population that renews the beta cells which are responsible for insulin production, and the whole insulin system could stand to be improved to prevent insulin insensitivity with age.
While the page is completely serious and anatomically correct, there are diagrams in there that you might not want to show your five year old kid. And I agree completely about the lack of need for a prostate.