The timing of flowering in plants is critical. It can have profound effects on flower, fruit, and seed production, and consequently agricultural yields. This process is known to depend on daylight and temperature ...
Nov 11, 2012
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Corals under attack by toxic seaweed do what anyone might do when threatened – they call for help. A study reported this week in the journal Science shows that threatened corals send signals to fish "bodyg ...
Nov 08, 2012
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A mother's willingness to sacrifice her own health and safety for the sake of her children is a common narrative across cultures – and by no means unique to humans alone. Female polar bears starve, dolphin ...
Nov 08, 2012
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(Phys.org)—The fossilized fangs of saber-toothed cats hold clues to how the extinct mammals shared space and food with other large predators 9 million years ago.
Nov 06, 2012
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(Phys.org)—Bees can bite. Biologists from universities in Greece and France have discovered that, besides a tail sting, the honeybee is capable of packing a paralyzing bite. The bee uses its bite weapon ...
Oct 29, 2012
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For the first time, researchers have been able to show by acoustic analysis that whales—or at least one very special white whale—can imitate the voices of humans. That's a surprise, because whales typically ...
Oct 22, 2012
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An team of Rutgers University scientists led by Richard H. Ebright and Eddy Arnold has determined the three-dimensional structure of the transcription initiation complex, the key intermediate in the process by which cells ...
Oct 18, 2012
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(Phys.org)—Researchers at Penn State University have developed a chemical model that mimics a possible step in the formation of cellular life on Earth four-billion years ago. Using large "macromolecules" ...
Oct 14, 2012
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Using genes as interchangeable parts, synthetic biologists design cellular circuits that can perform new functions, such as sensing environmental conditions. However, the complexity that can be achieved in ...
Oct 08, 2012
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(Phys.org)—A University of Michigan biophysical chemist and his colleagues have discovered the smallest and fastest-known molecular switches made of RNA, the chemical cousin of DNA. The researchers say ...
Oct 07, 2012
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Whether human or baboon, it helps to have friends. For both species, studies have shown that robust social networks lead to better health and longer lives. Now, a team of University of Pennsylvania researchers ...
Oct 01, 2012
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Over the last two decades, scientists have come to understand that the genetic code held within DNA represents only part of the blueprint of life. The rest comes from specific patterns of chemical tags that ...
Sep 30, 2012
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University of California, Berkeley, scientists have sequenced nearly all the genes in an underground community of microbes at a contaminated uranium mill site in Rifle, Colo., providing information that could help scientists ...
Sep 27, 2012
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