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COLUMNS
Idylls of the Mind • Have Banana Peel, Will Travel
Toward a theory of Erratacism
PETER TAUBER
Anecdotal Evidence • Snake Eyes in the Garden of Eden
Antievolutionists argue that humanity could not have evolved by chance. But just how would one recognize the presence of design?
KEITH DEVLIN
ESSAYS & COMMENT
Cover Story • The Five Sexes, Revisited
The emerging recognition that people come in bewildering sexual varieties is testing medical values and social norms
ANNE FAUSTO-STERLING
FEATURES
Say "Ah!"
Nanorobots the size of bacteria might one day roam people's bodies, rooting out disease organisms and repairing damaged tissue
ROBERT A. FREITAS JR.
On Commond Ground • Dance, Dance Wherever You May Be
The lowly frog now ranks as an equal partner with all other terrestrial vertebrates
PHOTOGRAPHY BY ROSAMOND PURCELL
TEXT BY STEPHEN JAY GOULD
Scents of Time
A Proustian memory triggered by an odor can be emotionally overwhelming—but it can also be misleading
RACHEL S. HERZ
REVIEWS
Battle of the Bones
Recent archaeological findings have led to revolutionary new theories about the first Americans—and to a tug-of-war between scientists and contemporary Native Americans
ROBSON BONNICHSEN AND ALAN L. SCHNEIDER
Books in Brief • Maggot P.I.
PLUS: Chromosomal odyssey; God and Dr. Einstein
LAURENCE A. MARSCHALL
DEPARTMENTS
Initial Conditions • Editor's Notebook
TURF WAR
PETER G. BROWN
Peer Review • Letters from Readers
Working Hypotheses • Biotech on the Farm
RODNEY W. NICHOLS
Quanta
Drugs-4-U; cosmic distances; babbling babies; Newton's big G
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