Evolution is without direction or purpose, it is just adaptation over time to changing conditions. How do I know what an ape dreams? And how do you? Apes adapted to their environment, and humans to ours. Apes do not evolve into humans-they share a common ancestor, that is all. Did your parents evolve into you, or do they stay as they are?
I am not an ethologist, nor a psychologist, so I can’t answer you question about self-awareness with any great authority. Brain function is not an “all or nothing” thing however-higher animals do show some self-awareness.
edge.org/3rd_culture/ramachandran07/ramachandran07_index.html
When practicing science, a biologist is doing science, and not theology, and therefore is not considering spiritual things even if he or she is a Christian. Scientists study nature when practicing their craft, not spirituality.
I do not know which individual scientists are spiritual, and which are not. There is Kenneth B. Miller, who is both a Catholic and a biologist, but I have no idea what he is thinking about at any particular time. I imagine when he is in church, he worships god, and in the lab, he does his science. So does everyone, I guess. A bus driver drives buses when at work, and prays in his church or at home-I really don’t understand the thrust/point of your comments-would you elaborate?
Edited: for typos.