View Full Version : Life Might Have Started in Fresh Water

2005-Sep-07, 04:11 PM
SUMMARY: By tracing back the family tree of cyanobacteria, a researcher from Washington University in St. Louis believes these tiny organisms began life in fresh water, not salt water as most biologists theorized. Cyanobacteria use light, water and carbon dioxide to produce oxygen and biomass, and they probably got their start 2 billion years ago in fresh water, and then evolved to survive in saltier environments.

View full article (http://www.universetoday.com/am/publish/life_fresh_water.html)
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