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By Science News

Magazine Issue: Vol. 156 No. #24, December 11, 1999

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Questions or comments on this article? E-mail us at feedback@sciencenews.org | Reprints FAQ

A version of this article appears in the December 11, 1999 issue of Science News.

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Related Stories

Health & Medicine
Refurbished heart pacemakers work like new

By Meghan Rosen16 hours ago
Archaeology
Ancient Central Americans built a massive fish-trapping system

By Bruce Bower18 hours ago
Climate
Satellite space junk might wreak havoc on the stratosphere

By Carolyn Gramling23 hours ago

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