Facial attraction -- choice of sexual partner shaped the human face
...and the canine teeth have shrunk, so men look less threatening to competitors, yet attractive to mates. At puberty, the region between the mouth and eyebrows, known as upper facial height, develops differently in men and women. Unlike other facial features, however, this difference cannot be explained simply i...Brain blood flow gives clues to treating depression
...ially for those whose depression is severe or life threatening or for whom repeated treatment trials with antidepressant drugs failed. Interestingly, patients response to two different classes of antidepressant medicines that target different neurotransmitters is associated with a similar improvement in cerebr......nd other agents continually damage the body's DNA, threatening life and health: unrepaired DNA can lead to mutations, which in turn can lead to diseases like cancer. Intricate DNA repair mechanisms in the cells' nuclei are constantly working to fix what's broken, but whether the repair work happens "on the road"...UCLA's California NanoSystems Institute partners with Abraxis BioScience
... approaches to the diagnosis and treatment of life threatening diseases, leveraging the complementary resources and skills of both organizations. To further support the partnership, visiting scholars from other institutions will also participate in the collaborative research programs. We are eager to collabora......hward along the coast of South America, and may be threatening hake fisheries there as well. Over the last five or ten years, Humboldt squid have expanded both north and south of their "home turf." A few have been seen as far north as Canada and the Gulf of Alaska. This expansion, if sustained, could have far-...Study finds contaminated water reaching Florida's offshore keys
...offshore reefs of the Upper Florida Keys, possibly threatening corals and human health. The widespread use of in-ground waste disposal through septic tanks and injection wells appears to be leading to the contamination of submarine groundwater even up to six miles offshore, said study author Erin Lipp, associa...Increase in creeping vines signals major shift in southern US forests
... that second-growth forests may be at more risk to threatening vine growth. Researchers wonder whether the steadily increasing growth in these forests will continue in the coming years. Unpublished data on vine growth in these forests gathered during the last four years suggests that this growth will continue. I...Small, self-controlled planes combine plant pathology and engineering
...transported over long distances in the atmosphere, threatening agriculture in the United States from both inside and outside the borders of the country, Schmale said. An increased understanding of the dynamics of plant pathogens in the atmosphere is essential for establishing effective quarantine measures, preve...Woods Hole Research Center scientists study impacts of industrial logging in Central Africa
...the accompanying proliferation of road density are threatening the future of this important ecosystem. Woods Hole Research Center scientists are using satellite imagery taken from 1976 to 2003 to study the development of industrial logging and road density in Central Africa so that scientists, conservation agenc...Duetting birds with rhythm present a greater threat
...periments have shown that the birds duets are more threatening territorial displays than songs sung solo. However, magpie-lark pairs vary considerably in their singing skills. Highly coordinated partners create alternating notes so closely spaced that they can sound like a single bird. In contrast, others rela...New insights into the neural basis of anxiety
...s fear towards such ambiguous cues than to clearly threatening stimuli. A team of researchers led by Cornelius Gross at the EMBL Mouse Biology Unit now discovered that this response to ambiguous stimuli requires a specific receptor molecule for serotonin, a signal many brain cells use to communicate. Mice tha...Eavesdropping comes naturally to young song sparrows
...rds learn more by eavesdropping because it is less threatening than interacting face-to-face with an adult. In a parallel line of research, Beecher and his colleagues are tracking song sparrows by radio in the field. Preliminary analysis of the tracking data suggests that young birds dont have many direct inte...News tips from the Journal of Neuroscience
...able ones. When these subjects were presented with threatening stimuli, in the form of images of angry faces, they rated unpredictable sounds as more unpleasant than predictable sounds. Thus, surprise and fear share some common elements and pathways in mouse and humans. 4. The Limits of Neuronal Grafts in Par...Young meerkats learn the emotion before the message in threat calls
...a youngster's understanding about the urgency of a threatening situation develops earlier than their understanding about the type of threat faced (in the June issue of The American Naturalist). Meerkat alarm calls are previously known to encode information about both the type of approaching predator (for examp...Climate change threatens wild relatives of key crops
...e potato and the peanut are at risk of extinction, threatening a valuable source of genes that are necessary to boost the ability of cultivated crops to resist pests and tolerate drought, according to a new study released today by scientists of the Consultative Group on International Agricultural Research (CGIAR...Male owls pitch their hoots to advertise body weight to competitors
...attempted to sound heavier when challenged by more threatening individuals. "The fact that owls are essentially active during the night puts a strong emphasis on acoustic communication as a means of assessment, both during male competition and during mate choice," says Loc Hardouin who recently completed a Ph...Mother knows best: Plant knowledge key to childhood health in remote Amazon
...A In a remote area of the Amazon, globalization is threatening the time-honored transmission of plant knowledge from generation to generation, with adverse effects on childhood health and nutrition. In a novel study published online this week in the Proceedings of the National Academy of Sciences, researchers re...Human pubic lice acquired from gorillas gives evolutionary clues
... most have their origins on some other host before threatening humans," he said. "Studying what it takes for a parasite to be successful in switching hosts adds to our knowledge about what makes a good host for the spread of disease." Working with other scientists who collected lice from primates in Ugandan w...Corals that can fight global warming may one day help fragile reefs
...range. And rising global temperatures appear to be threatening their survival, according to Drew Harvell, Cornell professor of ecology and evolutionary biology. However, she noted in presenting a paper at the annual meeting of the American Association for the Advancement of Science in San Francisco, Feb. 18, Car...... depend on the banana to stay alive. With diseases threatening many banana varieties, scientists are searching for new hybrids. In a lively account, Canine described the research effort and the ingenious methods being used to breed a better banana. "This was such an evocative piece that I had to go home and eat ...