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Laguna La Brava in Chile, where UConn researcher Pieter Visscher found clues that help explain how early life on Earth used arsenic to survive.

Ancient Microbial Life Used Arsenic to Thrive in a World Without Oxygen

Researchers traveled to a landscape in Chile similar in some ways to Mars to learn how life existed on Earth before oxygen.

October 2, 2020 | Pieter Visscher, University of Connecticut Brendan Paul Burns, University of New South Wales Kimberley L. Gallagher, Quinnipiac University