I thought I had shown the fascinating video below before but a search of my blog did not find it, suggesting that I meant to and forgot. It shows how in just eleven days bacteria can evolve to become resistant to high levels of antibiotics. As a visual demonstration of evolution it is dramatic. It is also frightening in that it shows how we need to be careful about the use of antibiotics since unnecessary use can help speed up the appearance of resistant strains of bacteria.
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