An ant walking in the desert can gauge distance by footsteps and the sun's position, but an ant being carried can estimate distance by visual information perceived as it passed by.
More than the needed 55 countries have ratified the Paris agreement, but they don't represent the required 55 percent of emissions
The wildfire season started early this month in the northwestern U.S., and the huge blaze still burns in Fort McMurray, Alberta, after three weeks of fighting the flames. What causes wildfires on this scale, and how can we prevent them?
The branches of birch trees in Europe sagged by as much as four inches at night compared with daytime.
Data, turned into music, reveals an odd scenario: death by freezing, in a warming world
Winter regrowth may be slower than usual
Sea-ice retreat is affecting every one of the endangered species’ refuges
Proposals range from more protected areas to bans on plastic bags
A free Web service combats illegal fishing by exposing the movements of commercial vessels to public view
We walk a line between the anarchy of choice and Disney-fication, says the author of Neuromancer
By playing road noise where there was no road, researchers were able to gauge the effect of the noise on bird behavior without having to deal with the effect of the road itself.
Some research says oil and gas production is the largest contributor, other work says it's agriculture, livestock and landfills
Diana Wall has built a career on overturning assumptions about underground ecosystems. Now she is seeking to protect this endangered world
South America and central Africa lost the most wilderness in a decline since the 1990s that saw the planet's wild areas down by a tenth
Carbon-emitting companies try to maintain the status quo, green-energy companies try to gain a competitive advantage
Biologists are trying to clean uninhabited U.S. Pacific Islands that are covered in nuclear waste, bird-eating mice and yellow crazy ants
Researchers use data analysis tools similar to Facebook and Amazon’s to find areas still in danger and predict the locations of lead pipes buried underground or hidden in residents’ homes
More terrestrial mammals are being stressed as their habitats shrink
Spreading predator beetles may be the only way to stop a tiny, sap-sucking pest that is decimating hemlock trees
The highly biodiverse country has rain forest, the Andes and the Galapagos Islands