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Contact: Leanne Yohemas
University of Calgary

Hamed Sanei, Steve Grasby and Benoit Beauchamp, University of Calgary

Caption: Dr. Hamed Sanei (right), Steve Grasby (center) and Dr. Benoit Beauchamp (left) discovered another key player assisting in Earth's greatest extinction: mercury. Dr. Benoit Beauchamp (left) is a professor at the University of Calgary. Dr. Hamed Sanei (right) and Steve Grasby (center) are research scientists at Natural Resources Canada and adjunct professors at the University of Calgary.

Credit: University of Calgary, Riley Brandt

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Related news release: Earth's massive extinction: The story gets worse

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