"I agree. The ones that went north went north and the ones that went south went south...now was that so complicated?:)"
You don't understand. If they simply said that, they could lose the grant. If they lose the grant, they might lose the university--hmm.
Yeah, what's so complicated about the ones that went north went northand the ones that went south went south?
But the children of the ones that went North died out, while the children of the ones that went South continue to reproduce, to this day.
That's the point of the story. You, I, and everybody else on Earth, are the descendents of the ones who went South. At least, this is what DNA is telling us.