Ancient algae trapped deep in glacier's ice
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Ancient algae trapped deep in glacier’s ice

Remains of creatures dating from sixth century deep inside glacier.

Diatoms found in an ice core from the Quelccaya Summit Dome Glacier. Scientists suspect the freshwater diatoms, a type of algae, were blown there from nearby high-elevation ponds as far back as the sixth century. Credit: BRUCE BRINSON/RICE UNIVERSITY
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