How do you tell if your part nephilim?

Roman Catholic AnswerYou may know for sure that you are not nephilim. Every single man (person) on the earth right now is a descendant of Adam and Eve. The nephilim talked about in the Old Testament are a different race that we know nothing about, they all were probably destroyed in the flood as at the time, only Noah, his wife, and his three sons, and their wives survived and we are all descended from them.