Mercury in dolphins: Study compares toxin levels in captive and wild sea mammals
Monday, May 21, 2012 - 11:02
in Biology & Nature
Amid growing concerns about the spread of harmful mercury in plants and animals, a new study by researchers from The Johns Hopkins University and The National Aquarium has compared levels of the chemical in captive dolphins with dolphins found in the wild. The captive animals were fed a controlled diet, while the wild mammals dined on marine life that may carry more of the toxic metal.