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The first gliding mammal winged through forests at least 70 million years earlier than scientists had previously presumed, a new fossil shows. The specimen dates from about 150 million years ago, during the time when birds were developing flight."This changes our view about the early evolution of mammals," says Jin Meng of the American Museum of Natural History in New York City. Scientists had proposed that mammals from that period "lived in the shadow of dinosaurs and were relatively primitive," Meng says. He and his colleagues report the finding in the Dec. 14 Nature.Farmers found the new fo... (p. 417)Published: December 23rd, 2006; Vol.170 #29Found in: Paleontology -
Home / News / December 16th, 2006; Vol.170 #25 / A Fair Slice: New method makes for equitable eatingA new method for cutting cake yields slices that make everyone equally happy. (p. 390)Published: December 16th, 2006; Vol.170 #25Found in: Numbers -
A new drug-delivery method has dramatically reduced tumors in experiments conducted with mice. (p. 398)Published: December 16th, 2006; Vol.170 #25Found in: Biomedicine
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Researchers have identified a gene responsible for boosting the protein, iron, and zinc content of some varieties of wild wheat by 10 to 15 percent. (p. 382)Published: December 9th, 2006; Vol.170 #24Found in: Agriculture
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In response to a new predator, lizards on several Caribbean islands underwent selection first for long legs and then for short legs. (p. 382)Published: December 9th, 2006; Vol.170 #24Found in: Biology
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Chronic back pain affects different parts of the brain than acute back pain does, magnetic resonance images reveal. (p. 381)Published: December 9th, 2006; Vol.170 #24Found in: Biomedicine
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Scientists have completed the first survey of virus DNA in oceans around the world. (p. 365)Published: December 2nd, 2006; Vol.170 #23Found in: Biology
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Home / News / November 4th, 2006; Vol.170 #19 / Abated Breath: Serotonin problems may contribute to SIDSBabies who die of sudden infant death syndrome show abnormalities in the regulation of the chemical serotonin in their brains. (p. 294)Published: November 4th, 2006; Vol.170 #19Found in: Biomedicine
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Home / News / October 28th, 2006; Vol.170 #18 / A Whale's Tale: Puzzling marine compounds are naturalAntique whale oil shows that some mysterious compounds that resemble DDT and PCBs are naturally produced. (p. 278)Published: October 28th, 2006; Vol.170 #18Found in: Environment -
The first high-resolution images sent by the Mars Reconnaissance Orbiter support the notion that water once flowed across much of the Red Planet. (p. 260)Published: October 21st, 2006; Vol.170 #17Found in: Planetary Science -
NASA's Mars Reconnaissance Orbiter has just completed a week of picture taking from as low as 300 kilometers above the surface of the Red Planet.Published: Monday, October 16th, 2006Found in: Planetary Science -
Home / News / October 14th, 2006; Vol.170 #16 / Messiness Rules: In high dimensions, disorder packs tightestIn high dimensions, disorderly arrangements of spheres pack together more densely than orderly arrangements do. (p. 244)Published: October 14th, 2006; Vol.170 #16Found in: Numbers -
Home / News / October 7th, 2006; Vol.170 #15 / Hot, Hotter, Hot: Climate seesawed during dinosaur ageThe climate during the time of the dinosaurs varied far more than scientists had previously thought. (p. 228)Published: October 7th, 2006; Vol.170 #15Found in: Earth Science
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Home / News / September 30th, 2006; Vol.170 #14 / Gassy Bugs: Microbes may produce propane under the seaMicrobes deep under the ocean's floor could be the source of some ethane and propane found in sediments. (p. 213)Published: September 30th, 2006; Vol.170 #14Found in: Earth Science
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Home / News / September 23rd, 2006; Vol.170 #13 / Flying with Their Legs: Hind feathers made primitive bird nimbleThe earliest-known bird had feathers on its legs that may have provided lift for flight, improving its maneuverability. (p. 197)Published: September 23rd, 2006; Vol.170 #13Found in: Paleontology
