So, this is about as small as life can get.
Scientists from Lawrence Berkeley National Laboratory and the University of California, Berkeley have captured the first detailed microscopic images of so-called “ultra-small bacteria” that are believed to represent the lowest size limit possible for life on Earth. Scientists have debated the existence of these tiny bacteria for decades since there was never such a detailed observation of the weird microbes–but the debate now seems to be over.
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A paper describing the research was published online Feb. 27, 2015 in the journal Nature.
