

Volume 103, Number 6, June 1994 



42 On Darwin, Snow, and 

 Deadly Diseases 



Paul W. Ewald 



46 Behind-the-Scenes Role 

 of Parasites 



John Jaenike 



49 Overhearing Cricket 

 Love Songs 



Daniel Robert and Ronald R. Hoy 



55 



The Hard Evidence 



The fossil record is fragmented and 

 incomplete, but scientists are uncovering 

 solid proof that the jerky process of 

 evolution by natural selection has been 

 going on for billions of years. 



56 On the Importance of 

 Nothing Doing 



Jeremy Jackson and Alan Cheetham 



60 Survival of the Smallest 



Adrian M. Lister 



63 The Turtle's Long-Lost 

 Relatives 



Michael Lee 



66 A Tale of Two Seas 



Nancy Knowlton 



70 



The Naked Ape's Bit Part 



Perhaps a species that has been around 

 for such a relatively brief time should not 

 be mentioned in this special issue, but it's 

 hard not to look in the mirror. 



72 A Brave, New, Healthy 

 World? 



Steve Jones 



78 Best Size and Number 

 of Human Body Parts 



Jared Diamond 



■• 82 Putting Human Genes 

 ' on the Map 



.m^mmJ Christopher Wills 



125 Years of Q& A 

 About Life's Story 



The American Museum of 

 Natural History, a major center 

 for research and public 

 education in New York City, is 

 celebrating its 125th 

 anniversary this year The 

 Museum shelters some thirty 

 million specimens, forty-two 

 display halls, a planetarium, 

 two hundred research scientists, 

 an active education department, 

 and this magazine. The 

 anniversary is being celebrated 

 in many ways, including the 

 publication of this special issue 

 on evolution — a subject long 

 and deeply pondered in the halls 

 of the Museum. 



Departments 



86 Celestial Events Gail s. cieere 



Making Time 



92 This Land 



Robert H. Mohlenbrock 

 Chincoteague Refuge, Virginia 



96 At the American Museum 

 of Natural History 



98 The Natural Moment 



Photograph by John K. B. Ford 

 Terror in the Tide 



100 Authors 



