ScienceDaily: Most Popular News

http://www.sciencedaily.com/news/most_popular/ Most popular science, health, technology and environment news stories, featured on ScienceDaily's home page.en-usFri, 03 Aug 2012 11:53:19 EDTFri, 03 Aug 2012 11:53:19 EDT60http://www.sciencedaily.com/images/logosmall.gifhttp://www.sciencedaily.com/news/most_popular/ For more science articles, visit ScienceDaily.http://www.sciencedaily.com/releases/2012/08/120803114412.htm An international team of scientists has used ancient DNA from bones of giant extinct New Zealand birds to show that significant climate and environmental changes did not have a large impact on their populations.Fri, 03 Aug 2012 11:44:44 EDThttp://www.sciencedaily.com/releases/2012/08/120803114412.htmhttp://www.sciencedaily.com/releases/2012/08/120803103050.htm Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the cosmos is expanding at an accelerating rate. But there is still too little known about the specifics of the processes by which these supernovae form. New research identifies a star system, prior to explosion, which will possibly become a type Ia supernova.Fri, 03 Aug 2012 10:30:30 EDThttp://www.sciencedaily.com/releases/2012/08/120803103050.htmhttp://www.sciencedaily.com/releases/2012/08/120803103048.htm In the cognitive sciences, the capacity to interpret the intentions of others is called ?Theory of Mind? (ToM). This faculty is involved in the understanding of language, in particular by bridging the gap between the meaning of the words that make up a statement and the meaning of the statement as a whole. In recent years, researchers have identified the neural network dedicated to ToM, but no one had yet demonstrated that this set of neurons is specifically activated by the process of understanding of an utterance. This has now been accomplished: researchers have shown that the activation of the ToM neural network increases when an individual is reacting to ironic statements. The findings represent an important breakthrough in the study of Theory of Mind and linguistics, shedding light on the mechanisms involved in interpersonal communication.Fri, 03 Aug 2012 10:30:30 EDThttp://www.sciencedaily.com/releases/2012/08/120803103048.htmhttp://www.sciencedaily.com/releases/2012/08/120803102937.htm Predatory beetles can detect the unique alarm signal released by ants that are under attack by parasitic flies, and the beetles use those overheard conversations to guide their search for safe egg-laying sites on coffee bushes.Fri, 03 Aug 2012 10:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803102937.htmhttp://www.sciencedaily.com/releases/2012/08/120803102935.htm An undergraduate student?s technique for detecting certain metabolites in urine samples could lead to a simpler and more accurate way to test for prostate cancer.Fri, 03 Aug 2012 10:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803102935.htmhttp://www.sciencedaily.com/releases/2012/08/120803102933.htm Having a healthy heart and lungs may be one of the most important factors for middle school students to make good grades in math and reading, according to new findings.Fri, 03 Aug 2012 10:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803102933.htmhttp://www.sciencedaily.com/releases/2012/08/120803094525.htm A new paper uses extensive Freedom of Information Act findings to detail a risky and extremely troubling off-label medical intervention employed in the U.S. on pregnant women to intentionally engineer the development of their fetuses for sex normalization purposes. Mothers are told the drug is safe but there is no such evidence.Fri, 03 Aug 2012 09:45:45 EDThttp://www.sciencedaily.com/releases/2012/08/120803094525.htmhttp://www.sciencedaily.com/releases/2012/08/120803094523.htm Scientists have demonstrated in the laboratory that a new drug is effective in treating a very common kidney disease -- although it will be a few years before it becomes available for clinical testing.Fri, 03 Aug 2012 09:45:45 EDThttp://www.sciencedaily.com/releases/2012/08/120803094523.htmhttp://www.sciencedaily.com/releases/2012/08/120803094429.htm New research adds to the growing body of evidence suggesting that there's a link between allergies and reduced risk of a serious type of cancer that starts in the brain.Fri, 03 Aug 2012 09:44:44 EDThttp://www.sciencedaily.com/releases/2012/08/120803094429.htmhttp://www.sciencedaily.com/releases/2012/08/120803094427.htm Watersheds need both steep, cold-running streams and meandering streams of warmer water to keep options open for salmon. Preserving that sort of varied landscape serves not just salmon, it provides an all-summer buffet that animals need to sustain themselves the rest of the year.Fri, 03 Aug 2012 09:44:44 EDThttp://www.sciencedaily.com/releases/2012/08/120803094427.htmhttp://www.sciencedaily.com/releases/2012/08/120803082931.htm Single particles of light, also known as photons, have been produced and implemented into a quantum key distribution (QKD) link, paving the way for unbreakable communication networks.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082931.htmhttp://www.sciencedaily.com/releases/2012/08/120803082917.htm Soil is the most species-rich microbial ecosystem in the world. From this incredible diversity, plants specifically choose certain species, give them access to the root and so host a unique, carefully selected bacterial community from which they then benefit in a variety of ways. To achieve this, the plant's immune system must be able to tell which of these bacteria are friends and which foes.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082917.htmhttp://www.sciencedaily.com/releases/2012/08/120803082915.htm Bilingual children outperform children who speak only one language in problem-solving skills and creative thinking, according to new research.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082915.htmhttp://www.sciencedaily.com/releases/2012/08/120803082913.htm Researchers? findings address a scientific debate that had lasted for 16 years over the existence of a double-stranded DNA structure.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082913.htmhttp://www.sciencedaily.com/releases/2012/08/120803082909.htm Scientists have combined the power of two kinds of microscope to produce a 3-dimensional movie of how cells ?swallow? nutrients and other molecules by engulfing them. The study is the first to follow changes in the shape of the cell?s membrane and track proteins thought to influence those changes. It also provides ample data to investigate this essential process further.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082909.htmhttp://www.sciencedaily.com/releases/2012/08/120803082907.htm An experiment has shown that strawberry extract added to skin cell cultures acts as a protector against ultraviolet radiation as well as increasing its viability and reducing damage to DNA. The study opens the door to the creation of photoprotective cream made from strawberries.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082907.htmhttp://www.sciencedaily.com/releases/2012/08/120803082905.htm Thirty years ago, eight in 10 Americans ages 17 to 19 had a driver's license. Today, it's six in 10, according to a new study.Fri, 03 Aug 2012 08:29:29 EDThttp://www.sciencedaily.com/releases/2012/08/120803082905.htmhttp://www.sciencedaily.com/releases/2012/08/120802184019.htm The African continent is especially vulnerable to the impact of climate change because it relies on rain-fed agriculture and many of its countries have a low adaptive capacity. The Climate Change and African Political Stability Program (CCAPS) has created a web tool that uses historical data to map the different levels of vulnerability to climate change at the sub-national level. The web tool will soon incorporate vulnerability measurements based on future climate projections, derived from simulations run on the Ranger supercomputer.Thu, 02 Aug 2012 18:40:40 EDThttp://www.sciencedaily.com/releases/2012/08/120802184019.htmhttp://www.sciencedaily.com/releases/2012/08/120802184015.htm On "I Love Lucy," Ricky Ricardo was known for switching into rapid-fire Spanish whenever he was upset, even though Lucy had no idea what he was saying. These scenes were comedy gold, but they also provided a relatable portrayal of code-switching, or switching back and forth between languages. Code-switching is common in multilingual homes and happens often in emotional situations. In a new article, psychological scientists examine how code-switching might influence children's emotional development.Thu, 02 Aug 2012 18:40:40 EDThttp://www.sciencedaily.com/releases/2012/08/120802184015.htmhttp://www.sciencedaily.com/releases/2012/08/120802184011.htm Biologists are tracking the evolution of the live oaks of eastern North America, seeking to understand how the trees adapted to climate change during glacial periods.Thu, 02 Aug 2012 18:40:40 EDThttp://www.sciencedaily.com/releases/2012/08/120802184011.htmhttp://www.sciencedaily.com/releases/2012/08/120802183954.htm Last year, astronomers discovered a quiescent black hole in a distant galaxy that erupted after shredding and consuming a passing star. Now researchers have identified a distinctive X-ray signal observed in the days following the outburst that comes from matter on the verge of falling into the black hole.Thu, 02 Aug 2012 18:39:39 EDThttp://www.sciencedaily.com/releases/2012/08/120802183954.htmhttp://www.sciencedaily.com/releases/2012/08/120802183952.htm What makes some species more prone to extinction? A new study of nearly 300 species of New Zealand birds -- from pre-human times to the present -- reveals that the keys to survival today differ from those of the past. The results are important for the growing number of studies that try to predict which species could be lost in the future based on what kinds of species are considered most threatened today, the researchers say.Thu, 02 Aug 2012 18:39:39 EDThttp://www.sciencedaily.com/releases/2012/08/120802183952.htmhttp://www.sciencedaily.com/releases/2012/08/120802183950.htm Australian scientists have discovered a new virus in bats that could help shed light on how Hendra and Nipah viruses cause disease and death in animals and humans.Thu, 02 Aug 2012 18:39:39 EDThttp://www.sciencedaily.com/releases/2012/08/120802183950.htmhttp://www.sciencedaily.com/releases/2012/08/120802183948.htm The rise of the Rocky Mountains and the appearance of a major seaway that divided North America may have boosted the evolution of new dinosaur species, according to a new study.Thu, 02 Aug 2012 18:39:39 EDThttp://www.sciencedaily.com/releases/2012/08/120802183948.htmhttp://www.sciencedaily.com/releases/2012/08/120802183942.htm The natural plant compound phenethyl isothiocyanate (PEITC) hinders the development of mammary tumors in a mouse model with similarities to human breast cancer progression, according to a new study.Thu, 02 Aug 2012 18:39:39 EDThttp://www.sciencedaily.com/releases/2012/08/120802183942.htmhttp://www.sciencedaily.com/releases/2012/08/120802183848.htm Researchers have determined the detailed three-dimensional structure of part of the flu virus' RNA polymerase, an enzyme that is crucial for influenza virus replication. The research was done on the 2009 pandemic influenza strain but it will help scientists to design innovative drugs against all the different influenza strains.Thu, 02 Aug 2012 18:38:38 EDThttp://www.sciencedaily.com/releases/2012/08/120802183848.htmhttp://www.sciencedaily.com/releases/2012/08/120802183818.htm Researchers have uncovered nine new genes associated with bone health. This study found clues to the cause of bone disorders such as osteoporosis, osteogenesis imperfecta, and high bone density syndromes by investigating the bone mineral content, strength and flexibility.Thu, 02 Aug 2012 18:38:38 EDThttp://www.sciencedaily.com/releases/2012/08/120802183818.htmhttp://www.sciencedaily.com/releases/2012/08/120802183757.htm Overweight and obese individuals can achieve a decade?s worth of important health benefits by losing just 20 pounds, even if they regain the weight later that decade, according to new research. With a focus on psychology?s role in overcoming the national obesity epidemic, the session also examined research that indicates foods high in sugar and fat could have addictive properties.Thu, 02 Aug 2012 18:37:37 EDThttp://www.sciencedaily.com/releases/2012/08/120802183757.htmhttp://www.sciencedaily.com/releases/2012/08/120802183754.htm The greatest risk factor for Alzheimer?s disease (AD) is advancing age. By age 85, the likelihood of developing the dreaded neurological disorder is roughly 50 percent. But researchers say AD hits hardest among the ?younger elderly? ? people in their 60s and 70s ? who show faster rates of brain tissue loss and cognitive decline than AD patients 80 years and older.Thu, 02 Aug 2012 18:37:37 EDThttp://www.sciencedaily.com/releases/2012/08/120802183754.htmhttp://www.sciencedaily.com/releases/2012/08/120802183752.htm Compounds blocking an enzyme universal to all influenza viruses may allow development of new antiviral drugs that also avoid the problem of drug resistance.Thu, 02 Aug 2012 18:37:37 EDThttp://www.sciencedaily.com/releases/2012/08/120802183752.htmhttp://www.sciencedaily.com/releases/2012/08/120802183750.htm A new study finds that treating chronic venous leg ulcers with a topical spray containing a unique living human cell formula provides a 52 percent greater likelihood of wound closure than treatment with compression bandages only.Thu, 02 Aug 2012 18:37:37 EDThttp://www.sciencedaily.com/releases/2012/08/120802183750.htmhttp://www.sciencedaily.com/releases/2012/08/120802153254.htm Scientists have vaporized the Earth -- if only by simulation, that is mathematically and inside a computer. They weren't just practicing their evil overlord skills. By baking model Earths, they are trying to figure out what astronomers should see when they look at the atmospheres of super-Earths in a bid to learn the planets' compositions.Thu, 02 Aug 2012 15:32:32 EDThttp://www.sciencedaily.com/releases/2012/08/120802153254.htmhttp://www.sciencedaily.com/releases/2012/08/120802153231.htm Computer-generated characters have become so lifelike in appearance and movement that the line separating reality is almost imperceptible at times. But while bipeds and quadrupeds have reigned supreme in CG animation, attempts to create and control their skeleton-free cousins using similar techniques has proved time-consuming and laborious. Researchers have found a possible solution to this challenge by developing a way to simulate and control movement of computer-generated characters without a skeletal structure.Thu, 02 Aug 2012 15:32:32 EDThttp://www.sciencedaily.com/releases/2012/08/120802153231.htmhttp://www.sciencedaily.com/releases/2012/08/120802150437.htm A researcher has observed a never-before-seen defensive strategy used by a small species of deep-sea squid in which the animal counter-attacks a predator and then leaves the tips of its arms attached to the predator as a distraction.Thu, 02 Aug 2012 15:04:04 EDThttp://www.sciencedaily.com/releases/2012/08/120802150437.htmhttp://www.sciencedaily.com/releases/2012/08/120802150435.htm Researchers have identified a potential target for treating diabetes and obesity. Studying mice, they found that when the target protein was disabled, the animals became more sensitive to insulin and were less likely to get fat.Thu, 02 Aug 2012 15:04:04 EDThttp://www.sciencedaily.com/releases/2012/08/120802150435.htmhttp://www.sciencedaily.com/releases/2012/08/120802141529.htm A "fight" between bacteria normally living in the intestines and the immune system, kicked off by another type of bacteria, may be linked to two types of chronic disease.Thu, 02 Aug 2012 14:15:15 EDThttp://www.sciencedaily.com/releases/2012/08/120802141529.htmhttp://www.sciencedaily.com/releases/2012/08/120802141527.htm Elephants rely on the same mechanism that produces speech in humans (and the vocalizations of many other mammals) to hit the extremely low notes they use to communicate.Thu, 02 Aug 2012 14:15:15 EDThttp://www.sciencedaily.com/releases/2012/08/120802141527.htmhttp://www.sciencedaily.com/releases/2012/08/120802141525.htm To minimize the chance of being recognized and thus attacked by the birds they are trying to parasitize, female cuckoos have evolved different guises.Thu, 02 Aug 2012 14:15:15 EDThttp://www.sciencedaily.com/releases/2012/08/120802141525.htmhttp://www.sciencedaily.com/releases/2012/08/120802141523.htm Despite the current and rapid melting of the Greenland Ice Sheet, it remains uncertain just when we will have reached a point when scientists will be able to predict its disappearance. Scientists report that this is not the first time in recent history that the ice sheet has been in retreat and then stabilized again.Thu, 02 Aug 2012 14:15:15 EDThttp://www.sciencedaily.com/releases/2012/08/120802141523.htmhttp://www.sciencedaily.com/releases/2012/08/120802141425.htm Researchers have taken a new look at an old, but seldom-used technique developed by the petroleum industry to recover oil, and learned more about why it works, how it could be improved, and how it might be able to make a comeback not only in oil recovery but also environmental cleanup.Thu, 02 Aug 2012 14:14:14 EDThttp://www.sciencedaily.com/releases/2012/08/120802141425.htmhttp://www.sciencedaily.com/releases/2012/08/120802141423.htm The simple model of how plants handle climate change doesn't always explain what's going on.Thu, 02 Aug 2012 14:14:14 EDThttp://www.sciencedaily.com/releases/2012/08/120802141423.htmhttp://www.sciencedaily.com/releases/2012/08/120802133653.htm For decades it has been thought that a shock wave from a supernova explosion triggered the formation of our Solar System. The shock wave also injected material from the exploding star into a cloud of dust and gas, and the newly polluted cloud collapsed to form the Sun and its surrounding planets. New work provides the first fully three-dimensional models for how this process could have happened.Thu, 02 Aug 2012 13:36:36 EDThttp://www.sciencedaily.com/releases/2012/08/120802133653.htmhttp://www.sciencedaily.com/releases/2012/08/120802133651.htm Giving antibiotics before cesarean section surgery rather than just after the newborn's umbilical cord is clamped cuts the infection rate at the surgical site in half, according to new research.Thu, 02 Aug 2012 13:36:36 EDThttp://www.sciencedaily.com/releases/2012/08/120802133651.htmhttp://www.sciencedaily.com/releases/2012/08/120802133649.htm It is not always best to forgive and forget in marriage, according to new research. Sometimes expressing anger might be necessary to resolve a problem ? with the short-term discomfort of an angry but honest conversation benefiting the health of the relationship in the long-term. The research is part of an effort to better understand the contexts in which some relationships succeed and others fail, and also to understand how close relationships affect our health.Thu, 02 Aug 2012 13:36:36 EDThttp://www.sciencedaily.com/releases/2012/08/120802133649.htmhttp://www.sciencedaily.com/releases/2012/08/120802133647.htm A research team uncovered an enzyme's role in the regulation of eye size in zebrafish. If the enzyme's role is similar in human eyes, it could be relevant to human vision problems, such as nearsightedness and farsightedness. The findings also warn of the potential changes phenylthiourea, a chemical used to block pigment, may have on zebrafish and the results of research using this common animal model.Thu, 02 Aug 2012 13:36:36 EDThttp://www.sciencedaily.com/releases/2012/08/120802133647.htmhttp://www.sciencedaily.com/releases/2012/08/120802122621.htm Marrying multiple husbands at the same time, or polyandry, creates a safety net for women in some cultures, according to a recent study. Extra husbands ensure that women's children are cared for even if their fathers die or disappear. Although polyandry is taboo and illegal in the United States, certain legal structures, such as child support payments and life insurance, fill the same role for American women that multiple husbands do in other cultures.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122621.htmhttp://www.sciencedaily.com/releases/2012/08/120802122619.htm Scientists have identified a group of proteins that determine how cells react to allergens, and two of them may hold the key to future preventative medications. When the chain of events leading to an allergic reaction is fully understood, she says, drugs can be developed to inhibit the initial reaction, relieving sufferers of their symptoms.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122619.htmhttp://www.sciencedaily.com/releases/2012/08/120802122617.htm New tools have confirmed high rates of misdiagnosis of patients with chronic disorders of consciousness, such as the vegetative state. An increasing number of patients' families wish to use these novel techniques for diagnosis, prognosis, and treatment. An international team analyzed the clinical, social and ethical issues that clinicians are now facing.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122617.htmhttp://www.sciencedaily.com/releases/2012/08/120802122615.htm When ordering seafood, the options are many and so are some of the things you might consider in what you order. Is your fish healthy? Is it safe? Is it endangered? While there are many services offered to help you decide, a group of researchers have found a simple rule of thumb applies. "If the fish is sustainable, then it is likely to be healthy to eat too," said one of the authors.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122615.htmhttp://www.sciencedaily.com/releases/2012/08/120802122613.htm Stem cell researchers have found for the first time a surprising and unexpected plasticity in the embryonic endothelium, the place where blood stem cells are made in early development.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122613.htmhttp://www.sciencedaily.com/releases/2012/08/120802122611.htm The past decade has been plagued with what seems to be a cluster of large earthquakes, with massive quakes striking Sumatra, Chile, Haiti and Japan since 2004. Some researchers have suggested that this cluster has occurred because the earthquakes may be 'communicating' across large distances, possibly triggering each other. But a new analysis concludes that the cluster could just as well be the result of random chance.Thu, 02 Aug 2012 12:26:26 EDThttp://www.sciencedaily.com/releases/2012/08/120802122611.htmhttp://www.sciencedaily.com/releases/2012/08/120802122512.htm A new method for creating genetic components dramatically expands synthetic biologists' toolkit beyond off-the-shelf bacterial components, greatly expanding the size and complexity of genetic circuits they can build. Applications include stem cell therapeutics and in-cell devices to diagnose early-state cancer and other diseases.Thu, 02 Aug 2012 12:25:25 EDThttp://www.sciencedaily.com/releases/2012/08/120802122512.htmhttp://www.sciencedaily.com/releases/2012/08/120802122510.htm Stem cells are special. Nestled in muscle and skin, organ and bone, they bide their time over years or decades until called to replace damaged or lost tissue. One secret to their longevity is an enzyme called telomerase, which stills the relentless ticking of the molecular clock that limits the life span of other cells.Thu, 02 Aug 2012 12:25:25 EDThttp://www.sciencedaily.com/releases/2012/08/120802122510.htmhttp://www.sciencedaily.com/releases/2012/08/120802122506.htm The composition of microbes in the gut changes dramatically during pregnancy, according to a new study. Although these changes are associated with metabolic disease under most circumstances, they could be beneficial in pregnant women.Thu, 02 Aug 2012 12:25:25 EDThttp://www.sciencedaily.com/releases/2012/08/120802122506.htmhttp://www.sciencedaily.com/releases/2012/08/120802122503.htm Scientists are beginning to understand one of life's enduring mysteries - why women live, on average, longer than men.Thu, 02 Aug 2012 12:25:25 EDThttp://www.sciencedaily.com/releases/2012/08/120802122503.htmhttp://www.sciencedaily.com/releases/2012/08/120802122501.htm Genetics clearly plays a role in cancer development and progression, but the reason that a certain mutation leads to one cancer and not another is less clear. Furthermore, no links have been found between any cancer and a type of genetic change called "copy-number variants," or CNVs. Now, a new study identifies CNVs associated with testicular cancer risk, but not with the risk of breast or colon cancer.Thu, 02 Aug 2012 12:25:25 EDThttp://www.sciencedaily.com/releases/2012/08/120802122501.htmhttp://www.sciencedaily.com/releases/2012/08/120802122459.htm Scientists have long been looking for a source of heart cells to study cardiac function or perhaps even to replace damaged tissue in heart disease patients. To do this, many are looking to stem cells. Scientists now describe how they uncovered ITD-1, a molecule that generates unlimited numbers of new heart cells from stem cells.Thu, 02 Aug 2012 12:24:24 EDThttp://www.sciencedaily.com/releases/2012/08/120802122459.htmhttp://www.sciencedaily.com/releases/2012/08/120802122405.htm Scientists have identified a protein that impairs the development and maintenance of lymphoma (cancer of the lymph nodes), but is repressed during the initial stages of the disease, allowing for rapid tumor growth.Thu, 02 Aug 2012 12:24:24 EDThttp://www.sciencedaily.com/releases/2012/08/120802122405.htmhttp://www.sciencedaily.com/releases/2012/08/120802122401.htm The plant hormone ethylene lets green tomatoes ripen even after the harvest, whereas the closely related chili peppers show no such effect. Researchers wanted to understand the reason for that and compared gene expression levels and metabolic pathways of both plant species. Understanding the ripening process is important to minimize the amount of food that festers on the way from the producer to the consumer.Thu, 02 Aug 2012 12:24:24 EDThttp://www.sciencedaily.com/releases/2012/08/120802122401.htmhttp://www.sciencedaily.com/releases/2012/08/120802122315.htm Unmanned aerial vehicles (UAVs), such as those used by the military for surveillance and reconnaissance, could be getting a hand ?- and an arm -? from engineers as part of a project to investigate adding dexterous limbs to the aircrafts. The project, whose subject harkens to the hovering android iconography of sci-fi movies, could be a step toward the use of UAVs for emergency response and search and rescue scenarios.Thu, 02 Aug 2012 12:23:23 EDThttp://www.sciencedaily.com/releases/2012/08/120802122315.htm

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