For the past three months the chatter of the Arctic Tern colony has served as the soundtrack of the summer breeding season.

Enjoy this macro shot of a flower fly adult feeding on some nectar, then learn more about these fascinating creatures.

The world's tiniest trees can grow just a few centimetres high – discover more about their adaptations to the freezing Arctic ...

Building an accurate model of Earth’s climate requires a lot of data. Photography reveals the extreme efforts scientists have ...

With nearly 200 countries to cover it would be quite a feat to see the entire planet, but with these fascinating photos from ...

In the heart of interior Alaska, where the wind howls across the tundra and winter locks the land in forty-below darkness, Soldiers of the Alaska Army National Guard’s 49th Missile Defense Battalion ...

Discover the full list of U.S. National Wildlife Refuges, categorized by region. Learn about key refuges, their ecosystems, and how to visit these protected areas.