2,657 results
- Animals
Leashing the Rattlesnake
Even in the 21st century, there's still room for old-fashioned, do-it-yourself ingenuity in experimental design for studying animal behavior.
- Humans
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
- Animals
Dogged Dieting: Low-cal canines enjoy longer life
The first completed diet-restriction study in a large animal shows that labrador retrievers fed 25 percent less food than those allowed to eat as much as they desired tend to live longer and suffer fewer age-related diseases.
- Health & Medicine
Broken Weapon: Mutation disarms HIV-fighting gene
A gene that once produced a small protein able to prevent HIV from infecting cells now lies unusable in the human genome.
- Health & Medicine
Compound mimics calorie restriction
A new compound, part of a family of proteins that regulate fat transport, lowers the risk of developing heart disease and diabetes in monkeys.
- Anthropology
The DNA Divide: Chimps, people differ in brain’s gene activity
The distinctive looks and thinking styles of people and chimpanzees derive from the contrasting productivities of their similar DNA sequences.
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The Eyes Have It: Newborns prefer faces with a direct gaze
Only a few days after birth, babies already home in on faces that fix them with a direct gaze and devote less attention to faces with eyes that look to one side.
- Life
All the World’s a Phage
There are an amazing number of bacteriophages—viruses that kill bacteria—in the world.
- Health & Medicine
Another Polio? Alarming West Nile fever risks emerge
Medical workers have found poliolike symptoms in a few victims of West Nile fever, and federal officials noted that blood transfusions appear to have infected some people.
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Psychotic Biology: Genes yield clues to schizophrenia’s roots
Two genes involved in the transmission of glutamate, a key chemical messenger in the brain, are linked to the occurrence of the severe mental disorder schizophrenia.
- Humans
From the May 10, 1930, issue
CANNON-BALL TREE The strange growth represented on the cover of this issue of the SCIENCE NEWS-LETTER is not a freak grapefruit tree. It is the normal method of flowering and fruiting of the cannon-ball tree, a member of the monkey-pot family found in the forests of South America. Its fruiting branches always grow out of […]
- Chemistry
Danger Detection
Analytical chemists are exploring ways to improve chemical and biological weapons detection.
