REPORT / INTERNATIONAL NEWS

Analysis of museum specimens shows high mercury levels in the endangered ivory gull. It could have implications for the bird's ability to reproduce and raise chicks, says a Canadian team. Mercury levels are going up in other Arctic birds, fish and mammals, due to atmospheric pollution, they report. Biologists at the University of Saskatchewan, Canada, say the ivory gull (Pagophila eburnea) acts like a "mercury barometer", sounding alarm bells for contamination of Arctic animals with mercury pollution.

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http://www.bbc.com/news/science-environment-31921127