Ancient Frozen Microbes Return To Life

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The DNA of ancient microorganisms frozen in glaciers has the ability to return to life as the glaciers melt. A paper published online this week in the Proceedings of the National Academy of Science by scientists who melted five samples of ice ranging in age from 100,000 to 8 million years old found many microorganisms trapped inside. The younger ice contained more lifeforms, which grew fast when cultured, doubling every couple of days. By contrast, the microorganisms from the oldest ice samples grew slowly, doubling only every 70 days. The researchers calculated a DNA half-life of 1.1 million years in Antarctic ice, and warned that as warming melts the glaciers, the revived DNA could fuel a new wave of bacterial evolution. . . Blimey. Will nature’s cryogenesis be the end of us? JULIA WHITTY

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DEMOCRACY DOES NOT EXIST...

without free and fair elections, a vigorous free press, and engaged citizens to reclaim power from those who abuse it.

In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily crazy—Mother Jones' journalism is driven by one simple question: Will America will move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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