Today humanity appears to be divided into modern humans with Neanderthal ancestry and those without. Those with OWN EVERYTHING and think up all the new
My guess is you are not far of, seems to me that creation was an ongoing project,new and improved models made and older ones discarded, some of wich survived as rebuild with some newer parts, mix and mach as it were LOL
Most likely ~ no idea what it looks like to the other side, but on this side it looks like replacement models and cannibalism for parts.