Has it ever been explained in the comic, handbook or anywhere else 'where' the matter comes from when these guys regenerate their destroyed and oftentimes departed flesh? Is it reconstituted matter from somewhere else in the universe, is it the same matter that was blown off re-added, or are they adding matter to the universe? Watching Heroes a few weeks ago when Claire cut off her little toe only to have it grow back, it struck me that there were now two toes . . Disclaimer: I know it's a comic book, but I am just wondering if anybody has attempted in explaining this, and I apologize if it was discussed earlier, searching for anything Wolverine related returns way too many threads.