Children already have some regenerative abilities, a lost finger tip in a child of only a few years will usually grow back if the wound is not sutured close by

Children already have some regenerative abilities, a lost finger tip in a child of only a few years will usually grow back if the wound is not sutured close by surgeons. Extending that to all humans might not be all that impossible. Wikipedia has more information in the mammalian and human sections in the article on regeneration. http://en.m.wikipedia.org/wiki/Regeneration_(biology) http://en.m.wikipedia.org/wiki/Regeneration_(biology)