3.5-Billion-Year-Old Lava Yields Signs of Early Life
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In this National Geographic News article, read about the discovery of evidence that early life on Earth may have been linked to volcanic environments. Fossils reveal that bacteria tunneled their way into lava that solidified on the primordial seafloor 3.5 billion years ago. Links to related stories and Web sites are also found on this page.
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Grade: 3 to 12
Topics: Geography, Life Sciences, History-Social Science, Earth & Space Science, Science, American Democracy
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