Melting ice in Arctic linked to bowhead whales holding off annual migration

Researchers in Canada find that population did not make the 6,000km roundtrip in 2018-2019

As the ice melts at pace in the Arctic, the mining and shipping industry has carved itself an opportunity out of the crisis. Meanwhile, the marine ecosystem is left to coping with the heat, noise, pollution and the cascade of other changes that come with the upheaval of the environment.

Now researchers have found a whale species that typically migrates away from solid sea ice each autumn and returns every summer to feast on tiny crustaceans did not make the 6,000km (3,700-mile) roundtrip in 2018-2019.