The presence of bison in tallgrass prairie ecosystems offers clues to the origins of the "lost crops" on which ancient Native Americans relied.

"Mercury that we believe had once been in the stratosphere is now in the deepest trench on Earth." Here's why that important.

Scientists have created the first world map of bees, which are crucial to ecosystems and crops around the world.

Preserving wildlife corridors between protected areas could help maintain genetic connections between African elephant populations, researchers report.

Chemicals banned in the US for almost 50 years still show up in bodies of migratory terns. "These chemicals are still there. They don't just go away."

By taking fish out of the ocean that would otherwise die and sink to the bottom, fishing has a negative impact on the ocean's carbon sequestration.

New research identifies four species of ocean fish that tend to get caught more than once. Here's what that means for sustainable fisheries.

Warm, moist rivers of air have a lot to do with massive holes in sea ice in Antarctica's Weddell Sea, a new study shows.

New research using squid on sticks underwater to lure predator fish shows how climate change has affected food webs in oceans.

Farms with more diverse crops can benefit the environment while not sacrificing yields, new research finds. In many cases, yields went up, in fact.