Then the whale went under and the net went limp ... The whales' fate is tied to the ice. Narwhal fossils have been found as far south as Norfolk, England, to which the ice cover extended ...

Narwhals performed tight, rapid turns—sometimes completing a full 360-degree rotation in under three seconds ... is shifting prey distributions and ice conditions, forcing marine mammals ...

is facing the prospect that the ice will retreat for good. Maybe the narwhals eluded their pursuers. Or maybe they were never there and are still lingering in their summer grounds up north ...

“Narwhals are highly sensitive and vulnerable to the effects of climate change because of the very close association of their lives with sea ice for food, navigation and refuge,” Moscrop said.

The Arctic is a majestic world, home to wildlife rarely seen further south: bowhead whales, polar bears, narwhals and walruses. Life thrives on and under a legendary blanket of snow and ice ...

"Narwhals are highly sensitive and vulnerable to the effects of climate change because of the very close association of their lives with sea ice for food, navigation and refuge," Moscrop said. "The ...