News
- Animals
Ant Iron Chefs: Larvae fix dinner but don’t sneak snacks
Movies of an ant colony show that larvae are the ones that prepare dinner when meat is on the menu. With Video.
- Tech
Narrow Escape: Sharp nanogutters hustle out wetness
Nanochannels with sharply tapered edges can dramatically boost fluid flow rates and potentially play a role in improved microchip cooling, fabrics to wick away perspiration, and other uses.
- Health & Medicine
Mixing Vessel: Air pollution helps cholesterol clog arteries
When paired with a diet high in fat, breathing polluted air on a regular basis accelerates the accumulation of dangerous plaques in arteries.
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Pumping Out Hope: Stem cells secrete brain-preserving protein
Researchers have turned stem cells into living drug pumps that could eventually treat Parkinson's disease.
- Paleontology
Mammoth Findings: Asian elephant is closest living kin
DNA studies suggest that the woolly mammoth is more closely related to the Asian elephant than to the African elephant.
- Earth
Satellite makes finest map yet of Antarctica
Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.
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Counting on technology to count elephants
Researchers now spend large amounts of time in remote areas to count and monitor the movements of large animals such as elephants, but in the future they may use seismic instruments to do the job.
- Earth
Where steel-belted radials go to die
A new technique for analyzing satellite images may enable researchers to easily identify sites where large numbers of used tires have been dumped.
- Earth
Ozone hole might not recover until the year 2065
The ozone-free zone that develops high in the atmosphere over Antarctica each summer as the result of the presence of chlorine- and bromine-containing chemicals may not heal until 15 years later than previously projected.
- Health & Medicine
Protein predicts sickle-cell danger
A biological marker of heart trouble can be used to identify sickle-cell anemia patients who are at greatest risk of developing a serious, disease-related complication.
- Health & Medicine
Transfusions harm some heart patients
Patients who undergo coronary-bypass surgery frequently receive unnecessary blood transfusions as part of their follow-up care.
- Health & Medicine
Old drug, new trick
The drug rapamycin, now used in transplants, may make chemotherapy for acute lymphoblastic leukemia more effective.
