Related topics: climate change · sea ice · arctic

Study tracks decline of weasels in North America

Researchers, including a North Carolina State University zoologist, found in a new study that three species of weasels once common in North America are likely in decline, including a species that's considered the world's ...

'Problematic' Greenland polar bear may be shot

A polar bear in Greenland may be shot dead next time it endangers people after several close encounters, including one where it bit the hand of a documentary team member, authorities said.

The narwhal's tusk reveals its past living conditions

Every year, a new growth layer is added to the narwhal's spiraled tusk. The individual layers act as an archive of data that reveals what and where the animal has eaten, providing a glimpse of how the ice and environmental ...

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