Killer whale DNA reveals distinct ties

Scientists have discovered that populations of Australasian killer whales revolve around matrilineal ties after using DNA to determine their populations across the region.

Study reveals high levels of contaminants in killer whales

Little is known concerning environmental contaminants in predators at the top of a food chain. A study published in Environmental Toxicology and Chemistry has demonstrated that new types of brominated flame retardants accumulate ...

PCB contamination in Icelandic orcas: A matter of diet

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 ...

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