News
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Parrots will fluoresce for sex
A budgerigar's head literally glows for its mate, and both males and females of this parrot species prefer to court radiant partners.
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Female pipefish face toughest odds
In the world of pipefish, which are cousins of sea horses, sexual selection may reverse, wherein females battle each other for male favor through sexual selection.
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A New Look for Science News
Starting next week, the print edition of Science News will have a new appearance.
- Earth
Toxic Pfiesteria inhabit foreign waters
The notorious Pfiesteria microbes, implicated in fish kills and human illness along the mid-Atlantic U.S. coast, have turned up in Norway.
- Humans
Official chooses Nevada for nuclear waste
On Jan. 10, Energy Secretary Spencer Abraham notified Nevada's Governor Kenny Guinn by telephone that he intends to recommend that southwestern Nevada's Yucca Mountain site serve as the nation's long-term geological depository for high-level nuclear waste.
- Health & Medicine
Nicotine metabolism shows ethnic bias
A comparison of Latino, white, and Chinese-American smokers suggests that people of East Asian descent are apt to clear nicotine from their blood more gradually than the other smokers do, thereby staving off a craving for the next cigarette.
- Materials Science
Mammal cells make fake spider silk better
Using long and abundant water-soluble proteins secreted by bioengineered mammal cells, scientists have spun the first artificial spider silk demonstrated to have some of the remarkable mechanical properties of the real thing.
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Much psychosis in elderly may go unnoticed
Swedish researchers identified hallucinations and other psychotic symptoms in 10 percent of a sample of 85-year-olds, a much larger figure than previously reported for elderly people.
- Astronomy
Some gamma-ray bursts may occur nearby
A sizable minority of gamma-ray bursts may originate relatively nearby, in galaxies within 325 million light-years of our own.
- Chemistry
Detonating silicon wafers can ID elements
Researchers have discovered a way to make certain silicon wafers explode on command.
- Health & Medicine
Gene Variant Tied to Human Aging
Variants of a gene linked to mouse aging are more prevalent in elderly people than in newborns, suggesting that the gene influences human aging or specific age-related illnesses.
- Health & Medicine
Cloning’s ups and downs
Dolly, the world's first cloned mammal, has developed arthritis, and two biotech firms have turned to cloning in their attempt to create pigs with organs that human bodies won't reject when transplanted.
