FEBRUARY 2006 



VOLUME 115 



NUMBER 1 



FEATURES 



30 MARCH OF THE WEEVILS 



How a Mexican beetle 

 launched a hundred-year attack 

 on United States cotton 

 ROBERT W. JONES 



36 THE ORIGINS OF LIFE 



Have too many cooks spoiled 

 the prehiotic soup? 

 ANTONIO LAZCANO 



42 A SHELL WITH A VIEW 



It takes a cool blood to feel 

 the earth's warmtli. 

 VERLYN KLINKENBORG 



