Board Thread:Naruto Discussions/@comment-4688597-20140906014901/@comment-25349026-20140906052753

ItachiWasAHero wrote: No from what we know she ate the fruit and then she later absorbed the shinju and together she transformed into the Juubi.

Thus then making the juubi/kaguya/shinju all the same critter. As for the original question? Who knows? How does Sasuke have a hawk? How did Obito cheat death a million times? Why did the author hype up the sage tools, have Madara drop them right in front of Ten Ten and then do NOTHING with them?

The world may never know.