Uncategorized
- Life
In evolution, last really can be first
By tracking bacteria for thousands of generations, researchers show how small DNA changes can eventually put underdogs on top.
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Body & Brain
Pack-a-day smoking habits are on the wane, plus Haitian cholera and omega-3s in this week’s news.
- Archaeology
Pueblo traded for chocolate big-time
New evidence of ancient Pueblo cacao drinking feeds a theory of long-distance trade.
- Humans
Record ozone thinning looms in Arctic
Depletion could expose the northern midlatitudes to higher-than-normal ultraviolet radiation in coming weeks.
- Earth
Cave formations record Black Sea deluges
Stalagmites in a Turkish grotto document 670,000 years of flooding.
- Astronomy
New study gives dark energy a boost
Measurements provide further evidence for a cosmic push that is accelerating the expansion of the universe.
- Earth
Japan quake location a surprise
Based on regional tectonics, seismologists expected the biggest events in the island's southern half.
- Humans
New stars of science honored in D.C.
The 2011 Intel Science Talent Search awards prizes to 10 young researchers.
- Life
Don’t trust any elephant under 60
Herds with older leaders are more attuned to danger, a study finds.
- Health & Medicine
Blood tests could forewarn of emphysema
Certain microparticles or proteins suggest nascent disease, even in smokers who appear healthy, two studies show.
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Atom & Cosmos
A new view of Beta Pictoris, plus Kleopatra’s moons and organics on Titan in this week’s news.
- Humans
Jumping on the bandwagon brings rewards
A study of day traders finds that being in the crowd can lead to better performance.
