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Heavy metals present in snake livers raise environmental concerns

Tiger snakes living in Perth's urban wetlands are accumulating toxic heavy metals in their livers, suggesting that their habitats—critical, local ecosystems—are contaminated and the species may be suffering as a result. Lead researcher Ph.D. Candidate Mr Damian Lettoof, from the Behavioural Ecology Lab in the School of Molecular and Life Sciences at Curtin University, said that not only were the snakes' livers shown to contain moderately high levels of heavy metals, but sediment samples taken from some of the wetlands sites were found to have amounts of arsenic, lead, mercury and selenium that exceed current government guidelines.  Read more.....



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