Humans
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We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Moldy whiff kills brain cells
A common black mold that blooms on moist cellulose-based materials produces a toxin that can kill certain brain cells.
By Janet Raloff - Anthropology
Capuchins resist inbreeding chances
Wild capuchin monkeys manage to avoid inbreeding, despite rampant opportunities for high-status fathers to mate with their grown daughters.
By Bruce Bower - Health & Medicine
Protozoa Aid Food-Poisoning Germs
Ubiquitous waterborne protozoa appear capable of aiding the survival of several types of bacteria responsible for gut-wrenching food poisoning.
By Janet Raloff - Humans
From the March 14, 1936, issue
Moving a giant mirror and deadly neutron rays.
By Science News - Humans
Explore Your Knowledge
Test your math and science knowledge at the National Center for Education Statistics Web site. Select a test topic and grade level (4th or 8th grade), then see how you do on a set of multiple-choice questions. The questions are from the Trends in International Mathematics and Science Study (TIMSS). Go to: http://nces.ed.gov/nceskids/eyk/
By Science News - Humans
Science’s New Guard: Winners of annual competition get honors and hefty scholarships
For her water-quality research project, an 18-year-old from Utah earned top honors among 40 competitors in the final phase of the annual Intel Science Talent Search.
By Ben Harder - Health & Medicine
Stent Repair: Coated replacements better than radiation
To clear clogged stents, the small mesh cylinders that doctors implant to prop open blood vessels, inserting a second, specially-coated stent works better than treatment with radiation.
By Nathan Seppa - Anthropology
Evolution persisted in agricultural era
Natural selection has continued to propagate survival-enhancing gene variants in human populations over the past 10,000 years, according to a new genetic analysis.
By Bruce Bower - Humans
Letters from the March 18, 2006, issue of Science News
Comfort zones Just because living organisms were found in extreme conditions does not necessarily mean they were created in these localities (“Is Anybody out There?” SN: 1/21/06, p. 42). Another possibility is that the creation of life took place under more amenable conditions and that these organisms, through evolution, gradually adapted as the conditions changed. […]
By Science News - Health & Medicine
May I Propose a High-Fiber Toast?
Scientists have genetically modified wheat to boost a type of dietary fiber linked to numerous health benefits.
- Humans
From the March 7, 1936, issue
Canadian caves, television field tests, and violin makers' secrets.
By Science News - Health & Medicine
Ear Protection: Combo vaccine prevents some infections
A vaccine that triggers immunity against two common bacteria can prevent many ear infections in babies.
By Nathan Seppa