Most evolving lineages, human or otherwise, when threatened with extinction, don't do anything special to avoid it.
George C. WilliamsMany traditional religions foster attitudes that ought to have disappeared as biological understanding accumulated over the last century.
George C. WilliamsEver since then, all descendant vertebrates have had the forward end of the digestive system and the forward end of the respiratory system very much involved with each other. This manifests itself in the human body with a crossing of the two systems in the throat.
George C. Williams