In Churchill, Canada, polar bears gather by the hundreds in the fall, waiting for the nearby bay to freeze. The human ...

The finding offers a small window of hope for a polar bear population vulnerable to the effects of climate change.

Each year, National Geographic highlights a collection of the most compelling images captured by Nat Geo photographers over the past 12 months in their "Pictures of the Year." For 2025, Nat Geo ...

We had just finished listening to a lecture about scientific research being conducted on the Greenland Ice Sheet when an excited voice came over the public address system of the National Geographic ...