It is not clear from this study whether the change reflects an overall increase in the populations of these whale species, or just a redistribution from other areas.

Other experts the BBC spoke to were concerned that the study suggested there was an influx of the animals from West Greenland. That is a sensitive issue in Greenland, a country where some whales are hunted.

But the scientists said that their findings do suggest that these "opportunistic" baleen whales appear to be adapting and might even be benefiting from the change.

Other Arctic

President Donald Trump has said the US will inflict "TREMENDOUS Economic Consequences" on any country that helps or does business with Iran.

He wrote in all capital letters on Truth Social that he was launching "the most crushing economic operation ever taken against any country!" He gave no further details, and did not name any other nation.

It comes after a 60-day ceasefire with Iran expired on Monday, with no sign of a diplomatic or military off-ramp to the conflict that the US and Israel began