I just want to make a point, since the issue of origins has arisen in a topic relating to morality. Christians often seem to make a big deal about how human beings came into existence when considering what we as human beings ought to do.
For me, the issue of origins is virtually irrelevant to morality. We could be created by the gods, or by Cthulhu, or by a computer intelligence, etc, and it would not matter one tiny bit what purpose they had in mind for our creation when it comes to our moral oughts.
In my view, our moral oughts have to do most fundamentally with what we are. We may ask what sort of naturally appropriate purposes we have, but that is answered by what we are. In order to understand our moral oughts, we need to examine the question of what it is to live as a human being, e.g., what sort of potentials we have, and how we need to relate to our life context (society, ecosystem, etc). We might learn something from evolution about ourselves from understanding how we evolved to our present state, but again this is only important ethically in terms of understanding how we are.
To place an excessive focus on origins is to miss the point. I suspect it is an attempt to sidestep the issue of learning about ourselves, and to shift that burden onto origin fables taken as dogma.
eudaimonia,
Mark