I think Alan Smithee did a pretty good job with this but here’s a few thoughts of my own.
I think the story of the Fall does a good job of recognizing the uniqueness of the human condition but only fumbles around at finding a cause for it.
The key part of the story (as others have pointed out) is that the Fall is precipitated by knowledge of right and wrong. In evolutionary terms it makes sense to recognize the fall as being symbolic of the moment that human beings became self-aware. As far as “bring death” into the world, I would suggest that it could be read as illustrating the moment that we became aware of our own mortality. There was always death, but but there was not always an awareness of it as being an inevitable event for every living thing, including us.
So as far as the human condition goes, it’s all there. We were as innocent as the other animals in the “Garden,” and then were became AWARE, not only of our own existence, including our own mortality, but our own actions and how those actions affect others. We became empathetic. We became aware not only of our own pain but the pain of others, and with that knowledge came responsibility. We were no longer animals. We knew what we were doing. With self-awareness comes accountability. With self-awareness comes sin.
The part of the story that I find unsatisfying and paradoxical is that Adam and Eve chose to eat the fruit before they knew right from wrong. If they didn’t know it was wrong, how could they be culpable? This paradox carries over to the dawn of self-awareness as well. if the fall is the moment that humans became human, then the “fruit” implies that humans had to choose self-awareness, a choice which would already require self-awareness in order to be meaningful.
The story says that humans are different than animals. Humans once were innocent but now they KNOW and because they know, they are no longer blameless for their actions. The story also says that humans chose this condition but I don’t see how they could choose it without already being in it.
I think the storytellers felt they could not blame God, so they blamed man, even though it was paradoxical. the serpent may have been a device designed as an attempt to resolve that conflict. They eat they fruit because the serpent told them to,and then after they ate it it was too late. They already knew right from wrong and God (evolution) could not turn them back.
If the snake has an analogue to evolution (and I’m reaching here) it’s simply the will to live which drives evolution. We eveloved because we were urged on by a mindless urge to live and by the time we were aware of the dangers of that urge it was too late.