Since our need to select a mate using colour vision is no longer vital to our survival, it may happen that colour vision in humans will disappear completely; some time in the future. As it is 7% of the male population is already red/green colour blind. See:
http://www.newscientist.com/news/news.jsp?id=ns99993835 We may have no use for colour film, or colour sensors either. Don _______________ Dr E D F Williams http://personal.inet.fi/cool/don.williams Author's Web Site and Photo Gallery Updated: March 30, 2002

