Board Thread:Theories and Speculation/@comment-32369776-20170708034118/@comment-3568954-20170716004744

naruto is a transmigrant and one has to be a direct decendant to be a transmigrant, which means the uzumaki clan have to be directly decended from asura, since there has been no mention of asura's children forming both the senju and uzumaki clan, the only logical assumption is that the uzumaki clan is a branch off of the senju clan. and the fact that the uzumaki clan have such strong life force this would require them to have been decended from a particularly strong senju, my theory is that one of the past transmigrants broke off from the senju to form the uzumaki clan, possibly marrying someone from another strong clan. this would explain why the uzumaki are known for there strong life force