Study indicates certain rules underlie calling behavior of bullfrogs
...f getting injured in such a fight, some male frogs lie low and keep mum when another male is nearby, a breeding behavior called satelliting, Horowitz said. Satelliting occurs when a non-calling male positions himself near a calling male and intercepts the female as sh...Scientists use new technique to pinpoint key gene in infectious fungus
...most experience no symptoms. But the infection may lie low for years. Then if a person's immune system is weakened by AIDS or chemotherapy, for example, the fungus may become active again. It can cause pneumonia. It also can spread from the lungs to the liver, spleen and other organs, causing serious ill...USGS: Contaminants may play important role in California amphibian declines
...n particularly drastic in the Sierra Nevada, which lie east of the intensely agricultural San Joaquin Valley. The red-legged frog is listed as threatened under the U.S. Endangered Species Act, and the mountain yellow-legged frog and Yosemite toad have been proposed for listing. "While crucial to the agri...New grain variety opens up possibilities for Australian farmers
...eadly to others. Many plants have properties that lie somewhere between the extremes of toxic and safe. Vetch is one of these. Common vetch is useful to farmers as a versatile nitrogen-fixing crop in cereal crop rotations. The plant grows particularly well in southern Australia and has also been used as...UF research shows that a fern soaks up deadly arsenic from soil
...ne of man's most vexing environmental problems may lie in one of nature's most remarkable plants. In an article scheduled to appear Thursday in the journal Nature, University of Florida scientists report discovering a fern that soaks up arsenic from contaminated soil. The first plant ever found to "h...Major unique new study shows infrequent inspections lead to greater stream pollution
... ecologist said. "The bottom line is that problems lie not with the counties or where the streams are but with enforcement, which is just not good enough in most counties." Rules to prevent erosion go into effect in Orange County whenever a half acre or more of land is disturbed by construction. The o...Scientists seek genetic clues to emphysema and chronic bronchitis
...he ones who develop COPD. They believe the answers lie in the smokers' genes. "We believe a person's genes cause them to produce a protein that protects their lungs against smoke-induced damage, or one that makes them more susceptible to damage by smoke," said National Jewish pulmonologist Barry Make, M....Super hearing in flies may improve hearing aid technology
The secret to better hearing aid technology may lie in the "super" hearing abilities of parasitic flies, according to researchers at the University of Toronto and Cornell University. In a study to be published in the April 5th issue of Nature, the researchers report that Ormia ochracea, a parasi...Virus studies reunite two families of major insect-borne viruses
...ephalitis. The protein, called E1, was found to lie flat on the surface of an alphavirus called Sindbi...ins that extend themselves in such a way that they lie flat on the cell surface membrane. For viruses, we knew of only one example, and that was a protein ......he prosaic name of SM3. But the real bombshell may lie in a second study that places her about halfway between Homo erectus-our supposedly dim-witted ancient cousins-and modern Homo sapiens. Cries of "missing link" and "smoking gun" have already gone up from a group of evolutionary anthropologists known ...Monogamy appears to be unnatural in the natural world
...about human infidelity is difficult because people lie about it, according to Lipton. But she said various studies indicate it is quite common, with 50 percent of men confessing to at least one affair and 30 percent to 50 percent of women admitting that behavior. "Being monogamous is rare. If people ...Collapse of simple life forms linked to mass extinction 200 million years ago
...t the time, the Queen Charlotte Islands which now lie between 52 and 54 degrees north latitude were probably on the equator or in the southern hemisphere, Ward said. "These are tropical fossils. There are many kinds of fossils in these rocks," he said. And they tell a story of a calamity that came on w...Study looks at causes, consequences of sex differences
...ly between species. For instance, female mice that lie between two males in utero (also called 2M females...rter life periods of fertility than do females who lie in utero between two other females (called 2F females). Male mice prefer to mate with 2F female mice...Discovery of 'tidal giant'--a new Egyptian dinosaur--reported in Science
...he authors. Paralititan 's skeleton appears to lie where it first fell, since the parts of the skeleton are associated, and the bones of carcass couldn't have been carried by the low velocity currents or floated to their final resting place in the shallow waters. But that doesn't mean that this final...Climate sensitivity may be higher than many think, researchers say
...e radiative forcing, the climate sensitivity could lie between 1 and 10 degrees Centigrade. "Consequently, there is a 54 percent likelihood that the climate sensitivity lies outside the IPCC range," Schlesinger said."Our results show that the probability density function very strongly depends on which r...Earliest chewing herbivore ever found spurred vertebrate life on land, scientists find
... of herbivorous dinosaurs. The reason for that may lie in the fact that mammals (and perhaps dinosaurs) are "warm-blooded," Reisz suggests. To maintain a high body temperature and high metabolism, they must develop an efficient way to digest and absorb nutrients from food. Permian reptiles, like modern-d...The world's most powerful NMR spectrometer
...structure-function relationships of molecules that lie at the heart of understanding fundamental biological processes. Determining the three-dimensional structures of proteins and nucleic acids provides important insights into the basic questions about how living organisms function and change, and how pa......w, the final number of genes-when it is known-will lie somewhere between their high of 40,000 and our value of 70,000." The Ohio State map would have taken far longer to assemble without the help supercomputers at the Ohio S...SAGE pronouncements on long life
Does the secret to long life lie in the genome? This month in Genome Research, researchers report genes associated with longevity in the worm Caenorhabditis elegans. Their results yield clues to the distinctive biology of long-lived worms. The researchers focused on a form of C. e...Webcast will ensure broad public access to the UC Santa Cruz Public Forum on Human Genome Research
...d diversity of all forms of life. Major challenges lie ahead, however, as researchers seek to apply the knowledge gained from recent advances in genomics. Key scientific goals include the mapping of human variation; identifying and validating the complete set of human genes; and understanding the diversi...