Blister beetles use sex and subterfuge to infiltrate bee's nests
... Hafernik, who with co-author Leslie Saul-Gershenz documented this behavior during the springs of 1992 and 1999 from the CSU Desert Studies Center. According to the researchers, once the triungulin mass successfully lures a male bee into pseudocopulation, the larvae use pincher-like limbs to attach themselves ...Cadmium makes brittle bones in Rocky Mt. birds
...dney-cadmium levels. Toxic levels of cadmium were documented in 44 percent of adult birds, whereas birds living outside the ore belt region of Colorado had near-normal cadmium levels in their bodies. High concentrations of cadmium damage kidney tissue and reduce the birds' ability to process calcium. Among ...Canadian scientists find potent antifreeze protein that equips insects to brave winter
... stored. The Queen's researchers have isolated and documented the molecular structures of two "hyperactive" antifreeze proteins in these two insects. "This is very exciting. These proteins are far more potent than those found in fish," says Dr. Davies. "With this information, we can go on to modify other mol...Molecular switch that inhibits fat cell development found
...e," says MacDougald. Other significant results documented in the Science article include: Of 18 known proteins in the Wnt family, Wnt 10b is the one most likely responsible for regulating adipogenesis. Wnt appears to repress fat cell development by inhibiting production of two transcription facto...Satellite imagery pinpoints El Niño's disruption of marine ecosystem
...ages of fish populations. While Kahru and Mitchell documented reductions in satellite estimates of surface phytoplankton for water off central and southern California, they found a significant increase off Baja California. "These moderate abundances of phytoplankton extended far off shore in warm waters, which ...Wolves in Yellowstone may aid aspen recovery
...sen said. Prior to the elimination of the wolf, we documented successful aspen regeneration for a period of at least 170 years.The ecological link between wolves, elk and aspen is being tested with continued research in Yellowstone Park. The study is comparing aspen growth and survival rates both inside and out... DURHAM, N.C. -- The researchers who documented the extinction of the little-studied "Miss Waldron...inction of Miss Waldron's red colobus is the first documented case of a primate extinction in the 20th century. The scientists who conducted an exhaustive search ...Study appears to show why muscle decays mysteriously in cancer, AIDS, other illnesses
...causes patients to waste away, literally, has been documented for at least 100 years, but it wasn't until about 20 years ago that researchers discovered a cytokine protein called tumor necrosis factor and that the factor could elicit cachexia," Guttridge said. "What we have done is to identify a key part of wha...UC Berkeley demographer finds first evidence that maximum age at death in humans is rising
...said Wilmoth, "there are currently about two dozen documented cases of people over 110 years of age - a handful of men and a few handfuls of women."......r own mates. This amazing behavior was genetically documented in the euphoniously named fifteen-spine stickleback. Egg thievery, Avise notes, might seem to be counterproductive because the male would wind up with foster young to tend, since the males are the "nest-sitters." It is suspected, however, that the pr...New species arise more quickly than previously believed, UMass researcher finds
... water flows. "Rapid evolution has also been documented for other organisms," Hendry points out. "The unique twist to our study is that we were able to demonstrate these differences resulted in reproductive isolation." Scientists examined tiny ear bones known as otoliths, which have a sort of bar-code ide...AIDS vaccine study harnesses 'killer' immune cells to control virus, prevent disease in animals
...als showed low or undetectable virus levels and no documented clinical disease or death. In comparison, eight animals who received a placebo vaccine showed persistent, high virus levels and significant clinical disease after 140 days, leading to death in half of them. "We haven't made a vaccine that will p...Tumor cells made more sensitive to radiation by blocking a key cellular molecule
...er, both Tepper and Russo point out that they also documented a decrease in "clonogenic survival." After treatment, tumor cells eventually ceased to divide and died. "This is the most important endpoint," Tepper said. "We found that treatment with IkappaB super-repressor or PS-341 increased the radiation respon...ORNL instrument could spell doom for Asian beetles
...and accuracy of the prototype instrument have been documented in the field, the technology will be transferred to an industrial partner for commercialization and miniaturization. ORNL is a DOE multiprogram facility operated by UT-Battelle. The project is funded by the Department of Agriculture's Forest Service ...Target cells found to play active role in synapse formation
...ons - the communicating arms of neurons - are well documented and thought to be the reaching, seeking fingers th...er issue of Nature Neuroscience, the UI scientists documented their findings, which have attracted growing interest from neuroscientists learning of the work at p...Chance discovery of 'immortal skin' holds medical promise
...in a million in science. There are only four other documented examples of "immortal" cells developing out of laboratory work, and all of those cases have caveats that limit their usefulness. Operating out of rapidly filling space at the MGE Innovation Center, Stratatech now has a dozen employees and includes so...DNA research reveals a new whale species
...astated populations. Today, scientists have documented that northern right whales in the Atlantic are experiencing lowered reproductive success, and are threatened by ships that collide with the animals and fishing nets that entangle them. Some of the same threats may be impacting the North Pacific righ...Aspirin use may increase pancreatic cancer risk
...y cancer-free, 161 cases of pancreatic cancer were documented during 18 years of follow up. Aspirin use was first assessed at baseline in 1980, and updated biennially thereafter. Participants were classified according to a history of aspirin use. A long duration of regular aspirin use (two or more tablets p...New study shows bison dont favor groomed roads in Yellowstone National Park
...at includes off-road travel. The study instead documented heavy travel over the Mary Mountain Trail linking the Hayden Valley, where many of the animals in the study spend the summer, to the Firehole area, where the majority of them winter. Using infrared monitoring stations, Bjornlie recorded between 100 a...Researchers trace toxins from algal blooms through the marine food web in Monterey Bay
... were tainted with domoic acid. While there are no documented cases of whales dying from domoic acid poisoning, the toxin was blamed for the deaths of more than 50 California sea lions in 1998. "We know the toxin enters the food web and poses a threat to large marine mammals and seabirds, but there is still a ...