News
- Health & Medicine
Flu spreads via airborne droplets
Hand washing goes only so far in retarding flu transmission.
- Humans
Dietary changes accompanied human evolution
Hominids moved toward eating grasses and away from tree leaves, according to chemical analyses of fossil tooth enamel.
- Archaeology
Italians taught French wine-making
Archaeology suggests Etruscans brought the grape to Gaul.
- Life
Genes weakly linked to education level
A search of more than 2 million DNA locations in more than 125,000 people finds a weak, and perhaps dubious, association with schooling.
- Health & Medicine
Mars trip would deliver big radiation dose
Curiosity instrument confirms expectation of major exposures.
- Paleontology
Fossil muddies the origin of birds
New specimen may be a feathered dinosaur — or the earliest avian yet discovered
- Climate
Southwest’s monsoon season may heat up with the climate
Warmer temperatures may bring stronger rainy seasons over the long term, study finds.
- Life
Response to bacterial infection depends on time of day
Mice that got Salmonella in the evening fared better than those given the microbe in the morning.
- Plants
Mosses frozen in time come back to life
Buried under a glacier for hundreds of years, plants regrow in the lab.
- Animals
How roaches developed disgust at first bite
A change in taste cells makes glucose-baited traps repellent.
- Life
Tests show that deadly flu could spread among people
Experiment shows that new influenza virus transmits through air between ferrets, a common experimental stand-in for humans.
- Life
A molecular window on itch
Researchers discover chemical puppet master behind the need to scratch.
