News
- Health & Medicine
Compound in salsa kills off Salmonella
Cilantro, one of the key ingredients of salsa, harbors an antibacterial compound that attacks Salmonella bacteria.
- Physics
Squashed spheres set a record for filling space
Modestly deformed spheres can stack with unexpected compactness.
By Peter Weiss - Health & Medicine
Hepatitis C drugs are less effective in black patients
A standard drug combination for hepatitis C is less likely to knock out the virus in blacks than in whites.
By Nathan Seppa - Earth
Newspaper’s Footprint: Environmental toll of all the news that’s fit to print
The environmental impacts of getting a newspaper dropped on your doorstep each morning vastly outweigh those of receiving the same information via a handheld electronic device.
By Sid Perkins - Chemistry
Weighty Discovery: Chemical screening technique identifies potential anthrax drug
A new version of mass spectrometry could speed the process of drug discovery by enabling more accurate screening of thousands of chemicals at once.
- Animals
Well-Tuned Bats: These animals are what they hear
Two studies of bats find that neighbors can live in virtually different worlds because their echolocation calls are tuned to detect different prey.
By Susan Milius -
Genetic Pickup: Did animals get brain genes from bacteria?
Genes that make brain chemicals may have been acquired from bacteria.
By John Travis -
Setting a Stage for Cancer: Another reason for women not to drink while pregnant
Drinking alcohol during pregnancy can cause a range of birth defects in newborns, and researchers have now shown that, in rats, it also increases the risk of breast tumors in adult offspring.
By Carrie Lock -
A Fetching Lexicon: Language clues come from dog’s vocabulary
A research team finds that a 9-year-old border collie displays a keen facility for learning word meanings, providing new support for the theory that simple types of thinking practiced by some nonhuman animals also make word learning possible in toddlers.
By Bruce Bower - Physics
Corralling the Mass Maker: Hunting ground shifts for elusive particle
Hunters of the most eagerly sought particle in high-energy physics, the Higgs boson, are gleaning fresh clues about where and how to look from a new finding about another fundamental particle called the top quark.
By Science News - Tech
DNA puts its best foot forward
A robot made of DNA has taken its first steps, suggesting that such devices could eventually be used for nanoscale manufacturing.
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Chimp DNA yields complex surprises
A molecular comparison of chromosome 22 in chimpanzees with its counterpart in people reveals surprisingly complex genetic differences between the two species.
By Bruce Bower