New research indicates a growing online trade in porcupine bezoars — a ball of inedible material that sometimes gathers in their digestive tracks.

More frequent, longer-lasting blooms can harm both wildlife and human health — and even kill. Can we learn to predict and prevent them?

Thousands of plant and animal species are already shifting their ranges in response to a changing climate. Will they be welcome?

A river-restoration advocate looks back at her family’s forgotten history to gain new insight into the history — and future — of our country’s rivers.

Wolves often get the blame for killing caribou in Canada’s boreal forests, but the real threat is human activity, new research finds.

A new report concludes U.S. waters “have insufficient protections for a healthy future,” and that the problem has gotten worse under the Trump administration.

Australia’s Bellinger River snapping turtle nearly went extinct in just months — before anyone knew it was in trouble. Conservationists are working to make sure it doesn’t disappear forever.

You may not have heard much about the long fight to remove the Nooksack Dam near Bellingham, Washington, but its detonation this week will prove ecologically and culturally important.

Fish in the northern reaches of the planet are adapted to thrive in some of the most dynamic conditions, but new research finds that some species are showing decline.

Areas with natural buffers from the effects of climate change could play a vital role in conservation efforts. New research helps to better understand them.