North Atlantic right whales are in worse shape than their southern cousins, in part due to entanglement in fishing gear, a new study says.

Coral polyps are among the greatest builders on our planet. From the tropics to the Arctic, these tiny creatures spend thousands of years patiently constructing the largest living structures on Earth.

National Geographic has revealed the Pictures of the Year 2025, highlighting images by Nat Geo photographers that inspired and defined the past year. This year's showcase features 25 images that cover ...