When you all get a chance to read about this, it is quite interesting.
To make a long story short, DNA has been studied and there is sufficient evidence to show that the origin of man is not from the middle east, but is in fact from central Africa. What was found is that people migrated north, then west. It stated that 75% of people are originally from a Jewish background after the northerly trek. This was traced back in time long before Adam and Eve.
For more info you can watch the episode of The Colbert Report. It repeats at 2 pm on the west on the Comedy Network, and on CTV at 4 pm, here in Canada later today.