For the tiny pea aphid, body color is a matter of life and death: Red and green color morphs determine their susceptibility to various predators and parasites in the wild.
Plants & Animals
Nov 21, 2010
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What prompts normal cells to transform themselves into cancerous cells? Researchers from Texas institutions, including the UT Health Science Center San Antonio, have identified factors in the very first step of the process ...
Cell & Microbiology
Nov 21, 2010
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For centuries, hunters have imitated their avian prey by whistling through their fingers or by carving wooden bird calls. Now a team of physicists at Harvard University in Cambridge, Massachusetts, has reproduced many of ...
General Physics
Nov 21, 2010
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Airplanes do not look much like birds -- unless you were to imagine a really weird bird or a very strange plane -- but should they? This question is exactly what a pair of engineers in California and South Africa inadvertently ...
Engineering
Nov 21, 2010
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Global carbon dioxide (CO2) emissions – the main contributor to global warming – show no sign of abating and may reach record levels in 2010, according to a study led by the University of Exeter (UK).
Environment
Nov 21, 2010
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(AP) -- Wild tigers could become extinct in 12 years if countries where they still roam fail to take quick action to protect their habitats and step up the fight against poaching, global wildlife experts told a "tiger summit" ...
Ecology
Nov 21, 2010
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Iranian Defence Minister Ahmad Vahidi said on Sunday that Tehran would soon launch into space a number of its newly designed satellites, Mehr news agency reported.
Space Exploration
Nov 21, 2010
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(AP) -- The Russian scientist shuffles across the frozen lake, scuffing aside ankle-deep snow until he finds a cluster of bubbles trapped under the ice. With a cigarette lighter in one hand and a knife in the other, he lances ...
Environment
Nov 21, 2010
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Hummingbirds rank among the world's largest and most accomplished hovering animals, but how do they manage it in gusty winds?
General Physics
Nov 21, 2010
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From a baby's first blurted "bowl!'" for the word "ball" to the whispered goodbye of a beloved elder, the capacity for complex vocalizations is one of humankind's most remarkable attributes -- and perhaps one we take for ...
General Physics
Nov 21, 2010
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