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Nature 440, 426-427 (23 March 2006) | doi:10.1038/440426a; Published online 22 March 2006
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Biochemistry: Gas with an ancient history
Don E. Canfield1
Abstract
Researchers persist in tackling our ignorance of what life was like way back in Earth's history. Evidence of methane production in ancient microbial ecosystems now emerges from 3.5-billion-year-old rocks.
Piecing together the early history of life from the geological record is like putting together an incomplete jigsaw puzzle. A few of the pieces connect, but many of them don't, and most are missing.
- Don E. Canfield is at the Nordic Center for Earth Evolution and the Institute of Biology, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
Email: dec@biology.sdu.dk
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