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Bacterial Rejuvenation - Bacteria age, but as a lineage, can live forever.

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Do bacteria age? Most biology textbooks will say that they don’t. However, research challenged that view for the first time in 2005, and a debate has ensued over the past 6 years. But a new model, published today (October 27) in Current Biology, re-examines earlier experiments and suggests that aging may have evolved early on as a mechanism that protects new generations from damages accrued by the parent.

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