News
-
Senior bees up all night caring for larvae
Honeybees turn out to be the first insect known to change circadian rhythms just because of a social cue, a crisis in the nursery.
- Tech
New device opens next chapter on E-paper
Researchers have developed a paperlike plastic that could become the pages of the first electronic books and newspapers.
- Paleontology
Did fibers and filaments become feathers?
A variety of filamentary structures on the fossil of a small theropod dinosaur recently found in China may provide new insight into the evolution of feathers.
- Health & Medicine
Novel typhoid vaccine surpasses old ones
A new vaccine links a sugar molecule found on the surface of the bacterium that causes typhoid fever with a genetically engineered version of the exotoxin protein, which arouses the immune system to churn out antibodies against the bacterium.
- Anthropology
Peru Holds Oldest New World City
Construction of massive ceremonial buildings and residential areas at a Peruvian site began 4,000 years ago, making it the earliest known city in the Americas.
-
When parents let kids go hungry
Researchers comparing Northern and Southern birds have confirmed a prediction about parents protecting themselves at their offsprings' expense.
-
Weather cycles may drive toad decline
For the first time, scientists have linked a global climate pattern to a specific mechanism of amphibian decline.
-
Worm sperm stimulate ovulation
A sperm protein for movement also prompts egg maturation and ovulation.
-
Huntington’s protein may be kidnapper
An abnormal protein associated with Huntington's disease kills cells by stealing another protein needed for cell survival.
- Astronomy
Solar cannibalism
Billion-ton clouds of charged gas hurled from the sun can overtake and eat their slower-moving gaseous brethren, complicating predictions of when and if one of these clouds might strike Earth.
- Astronomy
Raging sun provides earthly light show
At the tumultous peak of its 11-year activity cycle, the sun is spitting out X-ray flares and belching giant clouds of high-energy particles at a furious rate.
- Astronomy
Gamma-ray bursts reveal distant galaxies
A gamma-ray burst recorded Feb. 22, one of the brightest ever detected, is proving to be the strongest evidence so far that these cosmic flashbulbs originate in star-forming regions of distant galaxies and are generated by the explosive death of massive stars.
