text: We had no "first parents." We came from a large, common ancestral population that included non-humans and then "became" human--coalescent theory vs. bottleneck. The concept of a first set of parents necessitates a genetic bottleneck, in other words, dramatically insufficient diversity for survival. 
  
  Before that we were galactic dust. The ancient writers decided we had first parents based on the world they knew. They were wrong.