Polar bear's long swim illustrates ice melt

In one of the most dramatic signs ever documented of how shrinking Arctic sea ice impacts polar bears, researchers at the U.S. Geological Survey in Alaska have tracked a female bear that swam nine days across the deep, frigid ...

A polar-bear-inspired material for heat insulation

For polar bears, the insulation provided by their fat, skin, and fur is a matter of survival in the frigid Arctic. For engineers, polar bear hair is a dream template for synthetic materials that might lock in heat just as ...

Solar observatories face the prospect of being eclipsed

Motors whirred as a gleaming white dome slowly opened, allowing one of the premier solar telescopes in the world to track the magnetic fields and exploding flares of the sun. In a few hours, computers would translate that ...

Is Arctic sea ice doomed to disappear?

There's good and bad news for people, and polar bears, threatened by the Arctic's vanishing sea ice, scientists said Monday.

Why letting salmon escape could benefit bears and fishers

New research suggests that allowing more Pacific salmon to spawn in coastal streams will not only benefit the natural environment, including grizzly bears, but could also lead to more salmon in the ocean and thus larger salmon ...

Europe's bison, beavers and bears bounce back

Several European animal and bird species driven to near extinction by humans have made a dramatic comeback in the past 50 years thanks to conservation efforts, a report said Thursday.

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