Ecosystems
- Animals
An echidna’s to-do list: Sleep. Eat. Dig up Australia.
Short-beaked echidna’s to-do list looks good for a continent losing other digging mammals.
- Life
Lichens are an early warning system for forest health
Lichens, fascinating mosaics of fungi and algae or cyanobacteria, are made for sensing environmental change.
- Life
British red squirrels serve as leprosy reservoir
Red squirrels in the British Isles can harbor the bacteria that cause leprosy.
- Astronomy
Readers unimpressed by Earth’s newest neighbor
Exoplanet fatigue, runaway fish and more in reader feedback.
- Climate
Climate change shifts how long ants hang on to coveted real estate
Simulated climate warming reveals a new pattern in turnover of ant nests.
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- Ecosystems
‘Citizen Scientist’ exalts ordinary heroes in conservation science
Journalist Mary Ellen Hannibal’s “Citizen Scientist” tells tales of ordinary people contributing to science.
- Earth
Natural ally against global warming not as strong as thought
Soils may take in far less carbon by the end of the century than previously predicted, exacerbating climate change.
- Ecosystems
Shrinking sea ice threatens natural highways for caribou, plants
As Arctic sea ice declines, Peary caribou or plants risk getting stranded when their frozen highways thaw.
- Oceans
Fish escapes from marine farms raise concerns about wildlife
Farmed salmon, sea bass and other fish frequently escape from sea cages into the ocean. Will these runaways harm native wildlife?
- Animals
In drought, zebra finches wring water from their own fat
A zebra finch with no water or food can keep itself hydrated by metabolizing body fat.
- Animals
For snowy owls, wintering on the prairie might be normal
Some snowy owls leave the Arctic for winter. That’s not a desperate move, new study says.
