Ecosystems
- Ecosystems
Extinct moa ate purple trufflelike fungi, fossil bird droppings reveal
DNA analysis reveals the big, flightless moa birds ate — and pooped out — 13 kinds of fungi, including ones crucial for New Zealand’s forest ecosystem.
- Ecosystems
Like flyways for birds, we need to map swimways for fish
Mapping fish migration routes and identifying threats is crucial to protecting freshwater species and their habitats, ecologists argue.
- Animals
American burying beetles are making a comeback in Nebraska
Thanks to decades of conservation to restore private grasslands, numbers of the threatened insect are on the rise in the Loess Canyons.
- Life
Trees are failing to adapt to climate change. Losing fungi partners may be why
Certain fungi give trees nutrients and water, but heat and drought are putting both at risk.
- Ecosystems
New videos reveal the hidden lives of Andean bears
The footage give clues to the range of plants the bears eat and how they mate, information important for conservation.
- Health & Medicine
Dengue is classified as an urban disease. Mosquitoes don’t care
Infectious diseases are often labeled “urban” or “rural.” Applying political labels to public health misses who is at risk, experts argue.
- Science & Society
The U.S. empire was built on bird dung
A mid-1850s act let the United States seize islands rich in bird guano. Those strategic outposts fueled the U.S. rise to power, a researcher says.
- Environment
An idea to save Mexico’s oyamel forests could help monarch butterflies too
Climate change is putting monarch butterflies’ overwintering forests in Mexico at risk. Could planting new forests solve that problem?
- Animals
Some tadpoles don’t poop for weeks. That keeps their pools clean
Eiffinger’s tree frog babies store their solid waste in an intestinal pouch, releasing less ammonia into their watery cribs than other frog species.
- Environment
A biogeochemist is tracking the movements of toxic mercury pollution
Exposing the hidden movements of mercury through the environment can help reduce human exposure.
- Life
Mega El Niños kicked off the world’s worst mass extinction
Long-lasting, widespread heat and weather extremes may have caused the Great Dying extinction event 252 million years ago.
- Agriculture
Can scientists make fruits and veggies resilient to climate change?
Combining traditional plant breeding with new genomics tools is allowing scientists to grow plants that are better adapted to a warming climate.
