• Question: How many different types of bacteria are there in the world aprox?

    Asked by whchetandrob to Emma, Mike on 2 Jul 2012. This question was also asked by edward321.
    • Photo: Emma Trantham

      Emma Trantham answered on 2 Jul 2012:

      No one knows exactly how many species of bacteria there are because we can’t grow them all but currently it’s estimated that there are between ten million and one billion (so loads and loads!), but as I said, that’s basically only a best guess. We could be totally wrong!

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