Evidence from sediment cores suggests this rich ecosystem was flooded at least twice in the past
Ecologists say wolves should be allowed to roam beyond remote wilderness areas—and that by scaring off smaller predators like coyotes and jackals, wolves might do a good service, too...
As polar bears are forced onto land, they're feeding on animals with less mercury—reducing their levels of the toxic pollutant. Christopher Intagliata reports.
What happens when a geologist with a Sharpie encounters wrong information on a public sign?
Evaporation from overwatered lawns cost the city of Los Angeles 70 billion gallons of wasted water a year. But the city's trees were much thriftier. Christopher Intagliata reports.
Earthworm numbers doubled in fields after farmers switched from conventional plowing to no-till agriculture. Christopher Intagliata reports.
Emory University paleontologist, geologist and ichnologist Anthony J. Martin talks about his new book, The Evolution Underground: Burrows, Bunkers and the Marvelous Subterranean World beneath Our Feet ...
Imagining an ideal world can help us make this world better
A rap video for Earth Day
The agency’s Geostationary Carbon Observatory will study the planet’s carbon cycle
Plant species in China's Hengduan Mountains exploded in diversity eight million years ago—right when the mountains were built. Christopher Intagliata reports.
Scientists climb to perilous heights to gauge how much carbon dioxide the rainforest is absorbing
Shaquille O'Neal should definitely read this
What caused the hole in the ozone layer? And how has science helped us begin to shrink the hole?
Geologists unearth signs of major volcanic events stretching back 3 billion years
If anything's alive on the ice-covered ocean world of Europa, a future NASA mission hopes to find it.
The finding will help scientists more accurately model the planet’s geodynamic processes
Climate change and overfishing have made the penguins’ feeding grounds a mirage—which has led to a drop in penguin population. Jason G. Goldman reports.
New dates push the age back millions of years, creating a mystery about ice ages and animal migrations—if scientists are right
We continue our exploration of the USGS photograph database. In this edition, we have some truly spectacular summer eruption photos