News
- Tech
Nanocrystal
Researchers have used DNA as Velcro to create the first materials that spontaneously assemble into regular 3-D patterns.
- Animals
Bird fads weaken sexual selection
There's a new look for a hot male among lark buntings every year.
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More evidence that flies sleep like people
A brain chemical puts fruit flies to sleep.
- Humans
Wish List: FY ’09 budget proposal ups physical sciences
President Bush's proposed 2009 federal budget would boost R&D in the physical sciences while reining in biomedical research.
- Health & Medicine
Pot Downer: Marijuana users risk gum disease
Regular marijuana smoking is linked to gum disease in young adults.
- Ecosystems
Spread of nonnative fish mirrors human commerce
Invasions of foreign freshwater fish are more common in areas with relatively high economic activity, suggesting that humans are a part of the problem.
- Animals
Whales Drink Sounds: Hearing may use an ancient path
Sounds can travel to a whale's ears through its throat, an acoustic pathway that might be ancient in the whale lineage.
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Tots Who Tote: Babies show neural signs of budding number sense
By three months of age, infants already display separate brain networks for detecting changes in either the number or the types of objects that they see.
- Earth
Finding Fault: Trace of old subduction zone found in Italy
A thick layer of rocks now lying high in the mountains of Italy is the remains of a quake-generating subduction zone active under the sea millions of years ago, a discovery that provides clues about ancient seismic activity along this interface between tectonic plates and insights into what may be happening along many such subduction zones today.
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Growing Up to Prozac: Drug makes new neurons mature faster
Prozac may relieve depression by stimulating growth and maturation of neurons in some parts of the brain.
- Archaeology
Zeus’ altar drew early visitors
Archaeologists have discovered evidence that people used a ceremonial altar to the ancient Greek god Zeus around 5,000 years ago, a millennium before Zeus worship originated.
- Archaeology
The Black Death chose its victims selectively
An analysis of medieval skeletons in England and Denmark finds that the devastating epidemic known as the Black Death killed excess numbers of people who were physically frail to begin with.
