Bats prey on nocturnally migrating songbirds
...st silent nocturnal hunter patrolling the infinite dark space await them... ...Orbiter provides new hints of past groundwater flows on Mars
...ers of dark- and light-toned rocks, and crossed by dark sand dunes. Within those layered deposits, the exquisitely detailed images show, there are a series of linear fractures, called joints, that are surrounded by "halos" of light-toned bedrock. In a paper to be published 16 February in the journal Sci...Boosting brain power -- with chocolate
...cocoa drink rich in flavanols a key ingredient of dark chocolate boosts blood flow to key areas of the brain for two to three hours. Increased blood flow to these areas of the brain may help to increase performance in specific tasks and boost general alertness over a short period. The findings, unve...Antarctic marine explorers reveal first biological changes after collapse of polar ice shelves
...usters of dead clamshells littering an area on the dark ocean floor and pointing to the presence of a very rare "cold seep" essentially a sea floor vent spewing methane and sulphide. Seeps can create a temporary habitat for animal life in otherwise barren, inhospitable terrain for many years before exti...Making daughters different -- how immune cells take divergent paths when fighting infections
...icine. "Until now, we have pretty much been in the dark as to how we generate the spectrum of immune cells that are needed to fight off infections. We've always known the end result that more than one type of cell is needed but not the initial events that generate cell diversity. Now we have information...Discovery of new cave millipedes casts light on Arizona cave ecology
...e attention. The arthropods that can survive these dark and resource-poor environments can tell us a lot about what makes them so successful as a group." While conducting ecological inventories of 30 caves on the Colorado Plateau of northern Arizona, research by Wynne and Voyles has resulted in the disc...New compound prevents alcoholic behavior, relapse in animals by blocking stress response
... translational barrier, closer to the day when the dark side of addiction is treated." The new findings build on previous work showing the effectiveness of blocking certain CRF receptorsproteins that bind CRF and make it activein treating alcohol dependence in animals. CRF levels in the brain rise in t...'Guardian of the genome' protein found to underlie skin tanning
...an inability to tan; people who tan easily or have dark pigmentation are far less likely to develop the di...ly among the elderly, is the development of small, dark spots that are unrelated to sun exposure. The spots arise when groups of cells begin producing pigme...500,000 years of climate history stored year by year
...ngredient in the sediment, which is deposited as a dark brown winter sediment on top of the pollen-lime mix. At a depth of 400 metres no storm or waves disturb this process. These annual rings in the sediment can be traced back for hundreds of thousands of years. In some places the layer of sediment is up...'Dipstick' test could reduce risk of food poisoning by rapidly detecting spoilage
... spoilage. Specifically, the polymers changed from dark purple to yellow in the presence of badly spoiled fish, while the change was from dark purple to a reddish hue in the presence of mildly spoiled fish, he says. Depending on the degree of ...Ladybugs may be cute, but watch out when they get near wine
... 25 Ladybugs may look pretty but they also have a dark side. In some places, the polka-dotted insects have become a nuisance by invading homes and crops, including some vineyards. To make matters worse, the bugs produce a foul-smelling liquid that, besides irritating homeowners, can be inadvertently proc...ACS News Service Weekly PressPac -- March 21, 2007
...e totally beneficial insects, but they also have a dark side. These polka-dotted insects have become a nuisance by invading homes and crops, including some vineyards. To make matters worse, the bugs produce a foul-smelling liquid that, besides irritating homeowners, can be inadvertently processed along wi...Structural basis for photoswitching in fluorescent proteins brought into focus
...researchers observed that the protein rapidly went dark as the rings rotated about 180 degrees and flip by...n neighboring groups. Remington said that in the dark state, the molecule absorbs ultraviolet light and doesn't emit any light at all. However, when the c...Healthy reefs hit hardest by warmer temperatures
...er syndromes include black band, yellow blotch and dark spots.) Scientists from the Australian Institute for Marine Sciences made yearly visits to the same reefs, applying epidemiological methods similar to those used for tracking human disease. They found white syndrome present on the reefs when the su...New technique will produce a better chromosome map
...el copies of DNA strands. When stained, condensed, dark bands and lighter regions (interbands) give the chromosomes a striped appearance. For more than 70 years, cytogeneticists have used a hand-drawn map of the bands of fruit fly polytene chromosomes, with the shape and location of these structures onl...Scientists discover new life in the Antarctic deep sea
...ound hundreds of new marine creatures in the vast, dark deep-sea surrounding Antarctica. Carnivorous sponges, free-swimming worms, crustaceans, and molluscs living in the Weddell Sea provide new insights into the evolution of ocean life. Reporting this week in the journal Nature, scientists describe ho...New research shows sharks use their noses and bodies to locate smells
..." said Atema. "Since dogfish feed primarily in the dark hunting for crabs, lobsters, shrimp and small fish, their reliance on information from their lateral line is essential. The results are interesting for our understanding of animal navigation under water and for the development of guidance of autonomo...A living memory chip, black holes on the loose, and a clearer picture of ocean currents
...n million years, so an ejected black hole would be dark by the time it left its galaxy. -KM A Clearer Picture of Ocean Currents G. Froyland, K. Padberg, M. H. England, A. M. Treguier Physical Review Letters, forthcoming (preprint available) Research contacts: Gary Froyland ( g.froyland@unsw.edu.au......ne prominent researcher to label them the "brain's dark energy," Sporns said. As yet, no one knows why these fluctuations occur or what their function might be. Sporns and Honey suggest that a closer look at brain structure might provide a new perspective. Despite the huge amount of work being done ......s known as heterochromatin was called "junk." Like dark matter in the universe, the true nature of heteroc...ng heterochromatin." Smith uses the metaphor of dark matter to suggest the significance of heterochromatin. "We don't know what holds the galaxies togeth...