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>> RECORDING Latest News

SEP 17, 2013 - NPR

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Ear Wax From Whales Keeps Record Of Ocean Contaminants

Layers of wax in the marine mammals' ears can be read like tree rings, scientists say, recording a whale's age and also information about pollutants in the water the whale swam through. Wax from a blue whale that washed ashore in 2007 contained surprisingly high levels of DDT.

Tags: Ear Wax From Whales Keeps Record Of Ocean Contaminants,  Recording Latest News