Board Thread:Theories and Speculation/@comment-3965545-20160511191323/@comment-732150-20160511212236

I've always been critical of the lack of clarity on the whole Senju/Uzumaki relationship. We know they're "cousins", but there has never been a clear indication of how. From the Nagato talk, he's been called an Uzumaki, and said to be of Senju lineage. For the Senju and Uzumaki to be cousins, they need to share a common ancestor. However, if the Uzumaki split from the Senju, when the Senju were already established as Senju, that would make every Uzumaki have Senju blood, which I don't think is the case.