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News and Views
Nature 416, 28 (7 March 2002) | doi:10.1038/416028a
Biogeochemistry: That's life?
Henry Gee
This could be a picture of one of the earliest-known fossils — a microbe, 60 
m long, that is almost 3,500 million years old. On the other hand, it could be just a flaw in the rock.
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