And by the way, I am neither religious, nor aethiest, I believ the study of where man came from is one that will never be solved. We try to use "logic" and analyze specs of data from millenia ago, trying to trace it back as far as they can go. Why? We cant even figure out where dinosaurs evolved from, and where those animals evolved from, and so on. We will never figure it out, because the earth has changed sinced then from the hot gaseous ball of rock, with layer upon layer upon layer of crust added and taken away, oceans shrinking and growing larger, entire islands rising from the sea, ice ages, droughts, meteors, earthquakes. The earth has always been a big natural hell, and we are now worried about 11 hurricanes a year, some floods, the temperature rising 1 degree, one tsunami, extinction (all animals eventually become extinct), and a few earthquakes?
Nature always harmonizes itself on its own, we as humans are even a mutation of something else.
Even if something bad does happen to the earth, we can't stop it, even if we created it. Heck, none of us will even be alive when it happens.
So lets all get back to what is really important, stem cells, disease control and abolishment, and DNA and rDNA research and analysis for a better human race for the future.
The past is history, the future is wide open.