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. They found them: the distinctive calls of bowhead whales that should have been in their southern winter grounds but had stayed put. 'Ecosystem shift under way'Less clear however is why this happened, with the authors positing various theories mostly linked to climate change. One possible factor could be shifting ice cover, with less ice than usual seen in the summer grounds during the 2018-2019 winter season. So could the behaviour be an adaptation to climate change, and if so, what does that mean for bowheads?

Source: The Hindu April 22, 2021 11:03 UTC