Researchers Wake Up Microbes Trapped in Permafrost for Thousands of Years

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In a new study, a team of geologists and biologists led by CU Boulder resurrected ancient microbes that had been trapped in ice—in some cases for around 40,000 years.

In a new study, a team of geologists and biologists led by CU Boulder resurrected ancient microbes that had been trapped in ice—in some cases for around 40,000 years.

The study is a showcase for the planet’s permafrost. That’s the name for a frozen mix of soil, ice and rocks that underlies nearly a quarter of the land in the northern hemisphere. It’s an icy graveyard where animal and plant remains, alongside plentiful bacteria and other microorganisms, have become stuck in time.

That is, until curious scientists try to wake them up.

The group discovered that if you thaw out permafrost, the microbes within will take a while to become active. But after a few months, like waking up after a long nap, they begin to form flourishing colonies.

Read More: University of Colorado at Boulder

Image: The U.S. Army Corps of Engineers’ Permafrost Tunnel near Fairbanks, Alaska. (Credit: Tristan Caro) (Credit: Tristan Caro)