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Moss balls seem to roll around glaciers in a coordinated way, and researchers can't explain why the whole group moves at about the same speed and in the same direction.

A Utah legislative commission has voted to move forward with suing the federal government in an attempt to seize control of millions of acres of federal land.

A third of the 12,000-mile-long Great Wall of China lies in ruins. Its modern-day defenders confront what may be the world's greatest challenge in cultural preservation.

Biologists are keen to understand how a type of flatworm known as a planarian uses powerful stem cells to regenerate an entire body from a headless sliver of itself.

The Trump administration has called for more logging of western forests to reduce wildfire risks. But people on the ground in the west say the solution is thinning and forest restoration, not logging.

The Farm Bill being debated in Congress could have significant effects well beyond farms -- including on our waterways. Over the years wetlands have been…

Yoandra, her brother and son traversed 3,000 miles, crossed multiple borders and endured a harrowing seven-day walk through the Darien Gap between Colombia and Panama before reaching El Paso, Texas.

NPR's Ari Shapiro talks with Michael Regan, administrator for the Environmental Protection Agency, about the response after the train derailment in East Palestine, Ohio.

Delegates from nearly 200 countries are gathering in Canada to try to fix humanity's relationship with nature. The convention comes during an emerging extinction crisis.

After learning the U.S. doesn't officially recognize the bald eagle as its national bird, a Minnesota man swooped in and wrote a bill for Congress. This week, Biden signed it into law.