Underwater noise pollution threat to marine life

A breakthrough study by a specialist European research team, including scientists at the University of St Andrews, shows man-made underwater noise pollution is picked up by whales in a similar way they sense natural predators, ...

After thousands of years, an iconic whale confronts a new enemy

For millennia, vast expanses of the Arctic Ocean have been untouched by humans, ocean where narwhals and other marine mammals lived undisturbed. Now that climate change is causing sea ice to melt, there has been an uptick ...

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.

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 ...

page 4 from 27