Feature
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DNA Bar Codes
Scientists are using a small piece of DNA as a molecular bar code, a unique identifier to separate organisms into species.
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- Plants
Botany under the Mistletoe
Twisters, spitters, and other flowery thoughts for romantic moments.
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- Paleontology
Flightless Feathered Friends
New finds of fossil penguins, as well as analyses of the characteristics and DNA of living penguins, are shedding light on the evolution of these flightless birds.
- Health & Medicine
Asthma Counterattack
After several experimental attempts, researchers finally have verified that fighting allergens in the household can reduce symptoms of asthma.
- Earth
Can Banking Carbon Cool the Greenhouse?
Stockpiling carbon dioxide in plants and soil may be effective only for the short term, if at all.
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- Ecosystems
One-Celled Socialites
A wave of research on the social lives of bacteria offers insights into the evolution of cooperation and may lead to medical breakthroughs that neutralize virulent bacterial strains.
- Planetary Science
A Titan of a Mission
On Jan. 14, a space probe will plunge through the thick atmosphere of Saturn's moon Titan, looking for insights into the origins of life on Earth.
- Agriculture
Frozen Assets
A U.S. gene bank has begun deep-freezing semen and other livestock 'seed' for possible future use in research or breeding.
- Health & Medicine
Assault on Autism
A shift in scientific thinking about what causes autism is prompting a closer look at potential environmental factors.
