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Microbes that feast on crushed rocks thrive in Antarctica's ice-covered lakes

Microbes that feast on crushed rocks thrive in Antarctica’s ice-covered lakes

Microbes living in an ice-covered lake in Antarctica are feasting on crushed rocks, researchers have discovered. And the little critters are thriving. 

Subglacial lakes are bodies of freshwater, a majority of which are found in Antarctica, trapped between Earth‘s crust, or bedrock, and thick sheets of ice — sometimes several miles thick. These lakes are teeming with diverse microbes that feed off nutrients in the water. However, until now researchers were unsure exactly where these nutrients came from. 

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