Ear Wax From Whales Keeps Record of Ocean Contaminants

How often do whales clean their ears? Well, never. And so, year after year, their ear wax builds up, layer upon layer. According to a study published Monday, these columns of ear wax contain a record of chemical pollution in the oceans.

The study used the ear wax extracted from the ...Read More

Source: NPR Science - ingested into KQED

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