Sci Show: A new study from McGill University suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have much lower levels of PCBs. It mainly depends on what they eat.

Thursday, May 6, 2021

A new study from McGill University suggests that some Icelandic killer whales have very high concentrations of PCBs (polychlorinated biphenyls) in their blubber. But it seems that other orcas from the same population have much lower levels of PCBs. It mainly depends on what they eat.

https://ift.tt/3nTfshT via /r/science https://ift.tt/3b8EyUR

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