Since the dawn of knowledge and spirituality, humans were always so entranced by wanting to know our origins. We create theories and ideas about where we come from and when we became "human". As a society we debate it now, even looking down on those who have differing ideas, different truths. We each have to decide that truth for ourselves and hopefully one day we can sit down and listen to everyone's truth to find the overall meaning behind our theories.
Some believe we are a product of divine or alien intervention. Some believe we are products of pure evolution. I believe that there could be something between the two: a collection of our knowledge and theories that aim to piece together those links.
A true answer may never be found. Spirituality and religion attempt to make sense of this unknown by providing answers. Who knows, maybe there is some merit to what people preach. But maybe our origins exist beyond pure logic, and have some unknown history associated with it.