News
-
EnvironmentHome fires, farm fumes are leading causes of air-pollution deaths
Deadly air pollution comes from surprising sources, but toxicity of different types is still up in the air.
By Beth Mole -
AnimalsDogs flub problem-solving test
Confronting a tough task, dogs are more likely than wolves to give up and gaze at a human
By Susan Milius -
Science & SocietyShort memory can be good strategy
Game theory reveals that there’s a limit to the effectiveness of relying on prior results to predict competitors’ behavior.
By Andrew Grant -
Materials ScienceElectron waves refract negatively
Waves of electrons have been bent backward in a sheet of graphene, allowing physicists to focus electrons the way a lens focuses light.