Whale chorus reveals how climate change may be shifting migration 1 published : 21 Apr 2021 at 09:45 1 Loss of sea ice could be a factor in the unusual bowhead whale behaviour observed by scientists. TOKYO: Eerie wails, explosive trumpets and ghostly moans. The sounds from the underwater recorders had a story to tell, even without a single intelligible word: the whales had stayed put. The recordings gathered during the 2018-2019 winter in the freezing cold Arctic waters off Canada proved that a population of bowhead whales had skipped their usual migration south. Scientists believe this behaviour -- never previously detected -- could be driven by the effects of climate change, and be a potential harbinger of shifting dynamics across the region's ecosystem.