PCB contamination in Icelandic Orcas is a matter of diet
A new study from McGill University suggests that while some Icelandic Orcas have very high concentrations of polychlorinated biphenyls (PCBs) in their blubber, others from the same population have levels of PCBs that are much lower, with a 300-fold difference between the levels of PCBs among the most contaminated Orcas compared to the least contaminated […]