The smallest form of life known to science just got smaller.
Four million of a newly discovered microbe — assuming the discovery, reported yesterday in the journal Science, is confirmed — could fit into the period at the end of this sentence.
Scientists found the microbes living in a remarkably inhospitable environment, drainage water as caustic as battery acid from a mine in Northern California. The microbes, members of an ancient family of organisms known as archaea, formed a pink scum on green pools of hot mine water laden with toxic metals, including arsenic.
“It was amazing,” said Jillian F. Banfield of the University of California, Berkeley, a member of the discovery team. “These were totally new.” In their paper, the scientists call the microbes “smaller than any other known cellular life form.”
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