Jugo is an natural sennin chakra user right, his one with nature on a deeper level to the point he can speak to it.
What if Jugo's Clan was a sort of an guardian tribe for the Juubi or something, or his minions? Lol
Which also leads to my next question..where the hell is the 2 Elder Sage Toads!? Now is a good time to merge with Kurama!