Which dictates our existence? Is it our genetic makeup or the environment we grow up in? Kevin Davies offers an update on this long-standing debate, from the NOVA: "Cracking the Code of Life" Web site.

This site from the encyclopedia Wikipedia describes both the Autumn, or Fall, season as well as the reason for the season. Links are provided to information about the equinox and solstice associated with the season as well as a link to...