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Science 9 June 2006:
Vol. 312. no. 5779, p. 1457
DOI: 10.1126/science.312.5779.1457
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News of the Week

PALEONTOLOGY:
Ancient 'Reef' Stirs Debate Over Early Signs of Life in Australian Rocks

Erik Stokstad

A new study of ancient stromatolites in western Australia, published in Nature this week, musters evidence that bacteria were thriving as early as 3.4 billion years ago and created an enormous reef. (Read more.)

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Science. ISSN 0036-8075 (print), 1095-9203 (online)