The New York Times (15 August 2013) reports that scientist were able to observe (and film!) bacterial evolution in real time with predictable results.
This article by Carl Zimmer is a nice example of science journalism, based on an original research article published in the open access journal Cell Reports.
Dave van Ditmarsch, Kerry E. Boyle, Hassan Sakhtah, Jennifer E. Oyler, Carey D. Nadell, Éric Déziel, Lars E.P. Dietrich, Joao B. Xavier (2013). Convergent Evolution of Hyperswarming Leads to Impaired Biofilm Formation in Pathogenic Bacteria. Cell Reports, 4(4) 697-708. doi: 10.1016/j.celrep.2013.07.026
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