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These Bizarre Underground Microbes Haven't Evolved For 175 Million Years


These Bizarre Underground Microbes Haven t Evolved For 175 Million Years
ScienceAlert
2 hrs ago
© Chivian et al., Science, 2008
Rod-shaped CDA.
A bacterium that dwells deep underground, living off chemical reactions triggered by radioactive decay, has been doing so unchanged for millions of years, new research has found.
A genetic analysis of microbes of the species
Candidatus Desulforudis audaxviator (CDA) collected from three different continents has revealed that the bacterium has barely evolved since they were last together on the same land mass, Pangaea.
That means they have been in what scientists call evolutionary stasis for at least 175 million years, making CDA the only known subterranean living microbial fossil. This could have important implications for our understanding of microbial evolution. ....

South Africa , United States , Eric Becraft , Candidatus Desulforudis , Ramunas Stepanauskas , University Of North Alabama , Bigelow Laboratory For Ocean Sciences , Bigelow Laboratory , Ocean Sciences , ஒன்றுபட்டது மாநிலங்களில் , பல்கலைக்கழகம் ஆஃப் வடக்கு அலபாமா , பிஜேளா ஆய்வகம் க்கு கடல் அறிவியல் , பிஜேளா ஆய்வகம் , கடல் அறிவியல் ,