Uncontacted Tribes?

Question

If there are uncontacted tribes in this world still, how are they not all retarded from inbreeding?

Answer 1

It is a misconception that inbreeding causes retardation.  If that were so, purebred animals( German Shepherds, for example) would be really stupid.

(On the other hand, when one looks at the British aristocracy, there might be basis for reconsideration!)

Answer 2

uncontacted dosnt mean by other tribes in that neck of da woods.....ever see the movie kippendorfs tribe?  this news headline rminds me of that movie,,,LOL and come to think of it...they may be pretty deep back in the family gene pool,,, after all they are still lost in the woods and cant find a way out...