Molting seals shed mercury along with fur
Toxic metal from hair adds to seawater contamination, study finds
![A northern elephant seal shedding](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/090415_bm_sheddingsealsmain_free.jpg?fit=860%2C460&ssl=1)
MOLTING METAL Northern elephant seals collect toxic mercury in their hair; shedding then boosts local pollution levels, a study finds.
Dr. James Harvey