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COLUMNS
On Common Ground • Stretching to Fit
How life explores and colonizes the landscape of imaginable form
PHOTOGRAPHS BY ROSAMOND PURCELL
TEXT BY STEPHEN JAY GOULD
Field Notes • Conan the Bacterium
The world's toughest organism thrives in blistering deserts and radioactive dumps.Now workers are giving it a taste for chemical waste
PATRICK HUYGHE
On Human Nature • Sex and the Single Monkey
Among some primates, nice guys -- not just studs -- get the girl
ROBERT M. SAPOLSKY
FEATURES
Floor Show
Forged in volcanoes, nursed on sulfur, the first organisms may have evolved at the bottom of the sea -- here and on other celestial bodies
JOHN R. DELANEY
Stone Soup
Hundreds of meters within the earth, bacteria feast on a hearty pot liquor of rocks and groundwater
RICARDO GUERRERO AND LYNN MARGULIS
Blast Off
Forget interplanetary infection, theorists said: no process could lift intact rocks off a planet's surface. Then meteorites were identified from Mars
H. JAY MELOSH
REVIEWS
Planetary Prospecting
Lured by distant glimmers and a few nuggets of data, astronomers have launched a gold rush for extrasolar planets
LAURENCE A. MARSCHALL
Books in Brief • Face-Off
plus: Animals of Tibet; my dinner with Ludwig (and Alan and C.P. and Erwin and John)
LAURENCE A. MARSCHALL
DEPARTMENTS
Initial Conditions
Editor's Notebook: Stardust
PETER BROWN
Peer Review • Letters from Readers
Working Hypotheses • Frontiers
RODNEY W. NICHOLS
Quanta
What's wrong with this
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