It's unfortunate that people stop crawling after they learn to walk because it really should be the other way around. Think of all the advantages animals with four legs have and how much faster they are then us. If we all work together and decide to rededicate ourselves to crawling, we could develop into a civilization of kick-ass centaurs in a short period of time. Not to mention the fact that doggystyle would completely replace the missionary position by the year 2011.