Board Thread:Theories and Speculation/@comment-26904721-20150820181613/@comment-25093611-20150821164525

NawalK. wrote: If you don't then I would still love to read your theories! all senjus became immortals and wnt into a higher plane of existence and are now bored like the Q from star trek ;)

or, they had so much chakra that they lost the ability to give birth and therefore they vanished...

or, the females(pure senju) are so manly and full of chakra that they turn into males after becoming old enough (12 or 13) ^_^

or, they had a hugh infight and killed each other until they vanished :)

or, kishi didnt have a good story for them/didnt want to write about them/forget them and thy vanished :)

or, in the end the senju clan (in the time after konoha was created) only had hashi and tobi as their members, tobi chosed to not become the father of a mixed-child but hashis lust was to strong and therefore he took the only woman in the village which was able to survive his nightly "attacks", a uzumaki, the next best thing to a senju :D