We assume humanity was created from accidents and what not. However, as technologically advanced as we are, we can't up and throw a bunch of goo together and zap it with electricity and make life. We can manipulate genes and DNA and create glowing tomatoes, bacteria that can spin spider webs, and even dare we say it, a more perfect human if genetic manipulation was legal. As far as I know, the only reason it isn't is because people are afraid of what would result from such experiments. It's not just religious people who fear "playing God"
I don't doubt that natural selection had everything to do with us becoming to what we are today. It's as easy to say that god had nothing to do with that, but the fact is, we just don't know that. You can't prove he wasn't there constantly manipulating genes and altering cellular structures to guide the eventual human being from being formed. We're doing this every day in labs, who's to say some alien race didn't do the same over a long period of time? If that's the case, it might explain why homo sapiens suddenly appeared and the neanderthals died out shortly after. We don't know, we have no solid evidence to go either way. Maybe that's where the mythos of a god came to be.
My view is that Science was given to us by "god" in order to understand how he works. That Science was intended for us to eventually get to his level and then be able to coexist with him. Maybe that's what the concept of heaven is, technological enlightenment to exist with the being or beings that created us or molded us to what we are today. But I don't see a line dividing Science and Religion at all. Which is much like Martin Luthor did way back when he didn't agree with everything religion was stating then. So he adapted his own views and branched off his own way and others followed. However, unlike him, I could care less if anyone believes in what I do. I feel it's the truth and I'm content with it.