Dams threaten Europe’s last untamed river.

Pine cone collectors seek to save one million seeds.

American bison migrate across the West—enriching their own food as they go.

Scientists raise blue whale bones from the ocean depths for more study.

Miles of floating rocks are carrying tiny sea critters to Australia.

Puffins are reproducing in record numbers on islands near Maine.

A spider silk library could help scientists develop new materials.

Scientists hone in on precisely how much—or how little—water crops need.

Scientists seek remote, private beaches for dead whales to rot.

Animal and human waste can produce inexpensive and efficient fuel.