The presence of bison in tallgrass prairie ecosystems offers clues to the origins of the "lost crops" on which ancient Native Americans relied.
Nov. 27, 2020 • ~8 min
history food plants indigenous-people ecosystems earth-and-environment seeds
"Mercury that we believe had once been in the stratosphere is now in the deepest trench on Earth." Here's why that important.
Nov. 24, 2020 • ~9 min
pollution fish oceans featured earth-and-environment methylmercury
Preserving wildlife corridors between protected areas could help maintain genetic connections between African elephant populations, researchers report.
Nov. 23, 2020 • ~8 min
africa conservation elephants earth-and-environment
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."
Nov. 19, 2020 • ~8 min
pollution birds toxins ecosystems earth-and-environment
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.
Nov. 19, 2020 • ~6 min
climate-change carbon fishing oceans earth-and-environment
New research identifies four species of ocean fish that tend to get caught more than once. Here's what that means for sustainable fisheries.
Nov. 18, 2020 • ~5 min
sustainability conservation fish fishing earth-and-environment
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.
Nov. 13, 2020 • ~5 min
climate-change antarctica temperature wind earth-and-environment sea-ice