New thoughts during my second read of "The Origin of Species"... On humans. Every time I read this book I have new ideas and this one came to me after a second read of Darwin, and another look into the documentary "Homo Futurus". For those of you who have not seen this documentary, essentially it details that natural selection is not what drove evolution, but rather a fluctuation of the sphenoid in the base of the skull thus causing our spine to straighten and evolve to our present state. It is truly a fascinating documentary and I encourage you to watch it if you are able to find a version in english - the link I used has been deleted and I can only find it in Russian at this point in time... While I do not accept the idea that the sphenoid caused our evolutionary push forward, I think it gives insight to plausible conditions that arose over time during our evolution of natural selection. Side note: If any of you have watched Homo Futurus, let's discuss! Second Side Note: Before you assume I am a nazi racist, understand that this comes from a purely scientific thought. So when I observe people of all races, there seems to be a prominent bone structure unique to that specific race that stays true over many years. The size of the bones, the shape of the skull, from what I understand they vary considerably between races. So do you think there is a parent human -let us just use the term species, species that has evolved variations over time to create the races we see today? Or perhaps that each race has their own parent species? This idea is still fresh in my mind so excuse me if I have not put this eloquently. It just seems fascinating to me... that if this be true, when one starts to breed between races one is creating a new variation of the human. Let's discuss?