All Stories
- Health & Medicine
The other, friendly fat
Brown fat is active in adult humans and could help keep people lean.
- Health & Medicine
Acid reflux link to asthma now in doubt
Heartburn drugs called proton pump inhibitors, commonly prescribed for asthma patients, don’t prevent breathing attacks.
- Earth
Nickel down, oxygen up
Researchers point to the early ocean's concentration of nickel as the possible start for events that allowed Earth's atmosphere to accumulate oxygen.
- Life
Male chimps exchange meat for sex
A long-term study of chimps living in western Africa indicates that males hunt down monkeys not only to eat their meat, but also to exchange the meat for sex with female chimps.
- Animals
Sonar causes rock-concert effect in dolphins
Test of recorded sonar causes temporary hearing impairment in dolphins.
-
- Chemistry
Another type of traffic stress
Scientists find signs of DNA damage from air pollutants spewed by cars and trucks.
- Physics
Radioactive cigarettes
Polonium remains an underappreciated factor in the lung-cancer risk posed by cigarettes.
- Life
Primate vision puts pieces together
Study suggests nerve cells in retinas create an intricate system of interlocking receptive fields.
- Earth
Arctic ice more vulnerable than ever
Ocean’s ice cap is smaller than long-term average and thinnest yet as melt season begins.
- Chemistry
Leaden blood hikes granny’s heart risks
Featured blog: Even low concentrations of lead circulating in blood may pose lethal heart risks, a new study finds.
- Chemistry
Bubbles turn on chemical catalysts
Mechanical force could help chemical compounds spur reactions when the time is right.
