Scientific Adam and Eve

[robvalue]

The only way I could see that it's possible not to have one of these ancestors, for whatever animal, is if life originally developed in more than place (abiogenesis) and then they met up and interbred somehow. But even then, the common ancestor is only going to be uncertain for a while; once the interbred species takes off, eventually the ones still alive will be able to be traced back down that line... probably Still working this through in my head. My brain used to be able to think clearly, believe it or not. Now it's an addled mess. But then, wait... if we take the female side each time, then even these distinct groups would get seperated. The problem would be where there stops actually being males and females.

Yeah it's interesting Nic! Good subject I wish they had called them something other than Adam and Eve though, it's just begging for religious confusion...