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http://www.sciencenews.org/view/issue/id/9387
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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February 16th, 2008
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Fossils of a cardinal-sized creature recently unearthed in western Wyoming suggest that primitive bats developed the ability to fly before they could track their prey with biological sonar. (p. 99)
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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. (p. 99)
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Using a cosmic magnifying glass to peer into the deepest reaches of space, two teams of astronomers have discovered tiny galaxies that may be among the most distant known. (p. 100)
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Investigators have traced the source of counterfeit antimalarial pills in Southeast Asia to southern China, where suspects have been arrested and an illicit factory shut down. (p. 100)
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Some 300 young stars, hidden in visible light, shine through the dust in a new infrared portrait of the main cloud of a nearby star-forming region called Rho Ophiuchi. (p. 101)
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Intestinal bacteria train the immune system to cause pain and swelling, but that's a good thing. (p. 101)
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King penguins don't live on continental Antarctica but even they are vulnerable to warming water. (p. 102)
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People first reached the edge of the Americas about 40,000 years ago but had to stay put for at least 20,000 years before melting ice sheets allowed them to move south and settle the rest of the continent. (p. 102)
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Connections between the family of insulin hormones and cancer have been suspected for more than 2 decades, and today, drug companies are testing anticancer drugs based on the actions of an insulin cousin. (p. 104)
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Physicists use atom interferometry to measure gravity and other forces with unrivaled precision, and the technique could potentially guide airplanes and uncover buried caches of oil and diamonds. (p. 107)
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A brain chemical puts fruit flies to sleep. (p. 109)
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There's a new look for a hot male among lark buntings every year. (p. 109)
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Researchers have used DNA as Velcro to create the first materials that spontaneously assemble into regular 3-D patterns. (p. 110)
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An oral tradition passed down among islanders in the South Pacific saved many lives during a tsunami last year and illustrates the benefits that community-based education and awareness programs can provide. (p. 110)
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Intake of caffeine equal to two cups of coffee per day seems to double a woman's risk of miscarriage. (p. 110)
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(p. 111)
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