Live Science

What's Hot This Week Living Light: How and Why Organisms Glow Wynne Parry, LiveScience Senior Writer The ability to produce light by chemical reaction has evolved over and over again. Most Religious States Revealed in New Survey Jeanna Bryner, LiveScience Managing Editor Can you guess where your state landed on the most to least religious list? Sponsored by: Hard Times Mean Fewer Baby Boys, Study Suggests American Men Have Higher 'Macho' Hormone than Bolivian Tribesmen