5,519 results
- Life
Fountain of Youth, with caveats
A chemical in red wine thought to mimic the life-extending properties of calorie restriction improves health, but doesn’t necessarily lengthen life; it could also harm the brain.
- Health & Medicine
Still Waters: Skin disease microbe tracked to ponds, swamps
Scientists establish pond water as the natural environment of Mycobacterium ulcerans, the cause of the skin disease Buruli ulcer.
- Ecosystems
Eight-legged bags of poison
Birds eating arachnids get high dose of toxic metal as mercury climbs up the food chain.
- Physics
Rock, paper, toxins
A computer model simulates a kind of rock-paper-scissors competition among three species of virtual bacteria.
- Humans
Letters from the March 15, 2008, issue of Science News
Alpha bird(s) There is a detail not explicit in the article “Birds network too” (SN: 2/23/08, p. 125) that fits the computer network analogy. By its flight path, each bird adds its personal input and helps guide the course of the flock. Don BurnapRapid City, S.D. Andrea Cavagna, a physicist at Italy’s National Research Council, […]
- Health & Medicine
Patch guards against Montezuma’s revenge
A patch worn on the skin delivers a vaccine against a form of Escherichia coli that causes traveler's diarrhea.
- Health & Medicine
A Gut Feeling about Coffee
People's gut microbes digest fiber from coffee in a fermentation process, making beneficial compounds.
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Animal Origins: Genome reveals early complexity
Analysis of DNA from a choanoflagellate, the closest known living nonanimal relative of animals, allows scientists to infer the genetic starter kit possessed by the first animal.
- Ecosystems
Slime Dwellers
The health of corals, and their adaptability in the face of adversity, may rest largely on the microbes they recruit into a slime that coats their surfaces.
- Chemistry
Onward, microbes
With a tweak to their genetic codes, bacteria have been coaxed to follow a chemical trail of a researcher's choosing.
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Cells’ innards may share origin
Many of the internal structures of a cell may have evolved from an ancient, simpler compartment.
- Humans
Tomorrow’s Stars: Intel Science Talent Search honors high achievers
The Intel Science Talent Search announced its winners at a gala dinner honoring the competition's 40 finalists.
