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http://www.sciencenews.org/view/issue/id/9090
November 10th, 2007
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Breast-feeding substantially boosts children's intelligence, but only if the youngsters possess a specific version of a gene involved in processing mothers' milk. (p. 291)
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New observations suggest that ultrahigh-energy cosmic rays originate in the cores of nearby galaxies harboring supermassive black holes. (p. 291)
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Engineered plants make genetic material that disables critical genes in insects that eat the plants, offering a possible new strategy for agricultural-pest control. (p. 292)
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Fatty diets disrupt the sleep and metabolic cycles of mice by changing the activity of genes. (p. 292)
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Some parts of the terrain in Yellowstone National Park have been rising as much as 7 centimeters per year as molten rock wells up beneath the park. (p. 293)
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A gene in fruit flies favors the birth of females, until another gene comes along to restore balance between the sexes. (p. 293)
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Female toads that accept mates of another species in tough times may be looking after their own interest. (p. 294)
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Fragments of a fetus' genetic material that leak into a pregnant woman's bloodstream reveal details of early fetal development. (p. 295)
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Geneticists and conservation biologists are joining forces to untangle the evolutionary history of giant Galápagos tortoises and to safeguard the animals' future. (p. 298)
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Cleverly designed molecules can self-assemble into networks and stay robustly connected. (p. 301)
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A strain of bacterium that causes middle ear infection is resistant to all antibiotics currently approved for the ailment. (p. 301)
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Pumping out groundwater for crop irrigation or industrial purposes releases planet-warming carbon dioxide into the atmosphere. (p. 301)
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A sugarlike substance in the roots of lettuce may attract food-poisoning bacteria. (p. 301)
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Greater understanding of the role of genetics in human diseases presents scientists with ethical dilemmas. (p. 302)
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People with a newly discovered genetic variation are more vulnerable to HIV infection. (p. 302)
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DNA near the ends of people's chromosomes shows surprisingly large differences from the corresponding DNA in other great apes. (p. 302)
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(p. 303)
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Book Review: Crazy Like Us: The Globalization of the American Psyche
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