Actually, if you go by the Bible, wouldn't we all be descendants of Noah and his family?

Any way you look at it, we are all related. Even if you're of a more scientific mind, scientists have traced the DNA lineage of every human on the planet to a single male who lived about 60,000 years ago, and a single woman who lived about 200,000 years ago.

[link to news.nationalgeographic.com] ("Adam")

[link to www.sciencedaily.com] ("Eve")