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http://www.sciencenews.org/view/issue/id/8999
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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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October 13th, 2007
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An Australian snake kills dangerous frogs then waits for their defensive chemicals to degrade before eating them. (p. 227)
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Words change more quickly over the millennia the less frequently they are used, a quantitative result that may aid in reconstructing old languages and predicting future changes. (p. 227)
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Images from a spacecraft show a magnetic hurricane from the sun severing a comet's ion tail. (p. 228)
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Acinetobacter baumannii, a common bacterium, is becoming more virulent and drug resistant in hospitals. (p. 228)
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The 2007 Nobel prizes in the sciences recognized research in genetics, materials science, and surface chemistry. (p. 229)
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Experiments in a Florida swamp show how aquatic creatures can get trapped and preserved in amber, a form of hardened tree sap. (p. 230)
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Primates, like other mammals, possess specialized retinal cells that detect motion. (p. 230)
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Coming to your tattoo parlor soon: New inks that allow clients to have their designs cleanly erased if embarrassment or regret sets in. (p. 232)
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Some people may live lightly on the land, but the demands of the world's population as a whole consume nearly a quarter of Earth's total biological productivity. (p. 235)
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Three months after being stymied by a planet-wide dust storm, NASA's twin Mars rovers are back in action. (p. 237)
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Aerobic exercise, done alone or in a group, eases depression almost as well as a common antidepressant does. (p. 237)
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A change in the properties of Earth's mantle at high pressure and temperature may influence seismic waves in a novel way. (p. 237)
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Omega-3 fatty acids in the diet might fend off diabetes in children prone to the disease. (p. 237)
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Evidence from mitochondrial DNA indicates that Neandertals lived 2,000 kilometers farther east than previously thought. (p. 238)
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The area of sea ice in the Arctic is at its lowest in nearly three decades of satellite monitoring. (p. 238)
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An antibiotic called minocycline seems to limit brain damage and disability in stroke patients. (p. 238)
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Adding a photon to a light pulse then taking one out gives a different result from doing the same operations the other way around. (p. 238)
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(p. 239)
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