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Pandora's Baby

In vitro fertilization was once considered by some to be a threat to our very humanity. Cloning inspires similar fears

By Robin Marantz Henig

Shoot This Deer

Chronic wasting disease, a cousin of mad cow disease, is spreading among wild deer in parts of the U.S. Left unchecked, the fatal sickness could threaten North American deer populations--and maybe livestock and humans

By Philip Yam

Chain Letters and Evolutionary Histories

A study of chain letters shows how to infer the family tree of anything that evolves over time, from biological genomes to languages to plagiarized schoolwork

By Charles H. Bennett, Ming Li and Bin Ma

Self-Repairing Computers

By embracing the inevitability of system failures, recovery-oriented computing returns service faster

By Armando Fox and David Patterson


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