Today's Science News

Wednesday, March 4, 2015

Featured Research

from universities, journals, and other organizations

Newly Discovered Hormone Mimics the Effects of Exercise

Mar. 3, 2015 Scientists have discovered a new hormone that fights the weight gain caused by a high-fat Western diet and normalizes the metabolism -- effects commonly associated with exercising. When tested in ... full story

Nice to Sniff You: Handshakes May Engage Our Sense of Smell

Mar. 3, 2015 Why do people shake hands? A new study suggests one of the reasons for this ancient custom may be to check out each other's odors. Even if we are not consciously aware of this, handshaking may ... full story

First Ever Photograph of Light as a Particle and a Wave

Mar. 2, 2015 Light behaves both as a particle and as a wave. Since the days of Einstein, scientists have been trying to directly observe both of these aspects of light at the same time. Now, scientists have ... full story

Genetically Speaking, Mammals Are More Like Their Fathers

Mar. 2, 2015 You might resemble or act more like your mother, but a novel research study reveals that mammals are genetically more like their dads. Specifically, the research shows that although we inherit equal ... full story

Old-Looking Galaxy in a Young Universe: Astronomers Find Dust in the Early Universe

Mar. 2, 2015 Dust plays an extremely important role in the universe -- both in the formation of planets and new stars. But the earliest galaxies had no dust, only gas. Now an international team of astronomers has ... full story

Genetic Study Revives Debate on Origin and Expansion of Indo-European Languages in Europe

Mar. 4, 2015 Researchers have identified a massive migration of Kurgan populations (Yamna culture) which went from the Russian steppes to the center of Europe some 4,500 years ago, favoring the expansion of ... full story

Grand Tree of Life Study Shows a Clock-Like Trend in New Species Emergence and Diversity

Mar. 4, 2015 Researchers have assembled the largest and most accurate tree of life calibrated to time, and surprisingly, it reveals that life has been expanding at a constant rate. The study also challenges the ... full story

Animal Functional Diversity Started out Poor, Became Richer Over Time

Mar. 4, 2015 The finding refutes a hypothesis by the famed evolutionary biologist Stephen J. Gould that marine creatures underwent an 'early burst' of functional diversity during the dawn of animal ... full story

Adults Only Really Catch Flu About Twice a Decade, Suggests Study

Mar. 3, 2015 Adults over the age of 30 only catch flu about twice a decade, a new study suggests. So, while it may feel like more, flu-like illness can be caused by many pathogens, making it difficult to assess ... full story

Creative Genius Driven by Distraction

Mar. 3, 2015 The literary great Marcel Proust wore ear-stoppers because he was unable to filter out irrelevant noise -- and lined his bedroom with cork to attenuate sound. Now new research suggests why the ... full story

Far from Home: Wayward Star Cluster Is Both Tiny and Distant

Mar. 3, 2015 Like the lost little puppy that wanders too far from home, astronomers have found an unusually small and distant group of stars that seems oddly out of place. The cluster, made of only a handful of ... full story

High-Salt Diet Could Protect Against Invading Microbes

Mar. 3, 2015 Most people consume more salt than they need and therefore have a higher risk of heart disease and stroke, which are the two leading causes of death worldwide. But a new study reveals that dietary ... full story

When Age Matters: Precise Dating of Ancient Charcoal Found Near Skull Is Helping Reveal Unique Period in Prehistory

Mar. 3, 2015 The precise dating of ancient charcoal found near a skull is helping reveal a unique period in prehistory. The Manot Cave, a natural limestone formation, had been sealed for some 15,000 years. It was ... full story

Black Phosphorus Is New 'Wonder Material' for Improving Optical Communication

Mar. 2, 2015 In a new study, researchers used an ultrathin black phosphorus film -- only 20 layers of atoms -- to demonstrate high-speed data communication on nanoscale optical circuits. The devices showed vast ... full story

Cloudy, With a Wisp of Liquid Rock: Clouds Around Exoplanets Analyzed

Mar. 3, 2015 Meteorologists sometimes struggle to accurately predict the weather here on Earth, but now we can find out how cloudy it is on planets outside our solar system, thanks to new ... full story

Featured Videos

from AP, Reuters, AFP, and other news services

Australian Museum Shares Terrifying Goblin Shark With the World

Australian Museum Shares Terrifying Goblin Shark With the World

Buzz60 (Mar. 4, 2015) The Australian Museum has taken in its fourth-ever goblin shark, a rare fish with an electricity-sensing snout and 'alien-like' jaw. Mike Janela (@mikejanela) takes a look. Video provided by Buzz60
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Treadmill Test Can Predict Chance Of Death Within A Decade

Treadmill Test Can Predict Chance Of Death Within A Decade

Newsy (Mar. 2, 2015) Johns Hopkins researchers analyzed 58,000 heart stress tests to come up with a formula that predicts a person's chances of dying in the next decade. Video provided by Newsy
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Black Hole 12 Billion Times the Size of Sun Discovered at Dawn of Universe

Black Hole 12 Billion Times the Size of Sun Discovered at Dawn of Universe

Buzz60 (Feb. 26, 2015) Scientists are saying they've spotted a black hole 12 billion time bigger than the sun. Patrick Jones (@Patrick_E_Jones) has the details. Video provided by Buzz60
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NASA's Dawn Spacecraft Spots Two Bright Points On Ceres

NASA's Dawn Spacecraft Spots Two Bright Points On Ceres

Newsy (Feb. 26, 2015) NASA scientists still don't have a clear picture of the bright spots showing up on the surface of Ceres, a minor planet in the asteroid belt. Video provided by Newsy
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last updated on 2015-03-04 at 10:28 am EST

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Analysis of Spider Venom Reveals Seven Promising Compounds With Potential to Relieve Chronic Pain

Mar. 4, 2015 New research shows that seven compounds of the countless found in spider venom block a key step in the body's ability to pass pain signals to the ... full story

Bird Flu: New Compound Protects 100 Percent of Ferrets, Mice, from H5N1

Mar. 3, 2015 Medical researchers have developed an antibody which has proven 100 percent protective against the H5N1 virus in two species of animal ... full story

Neuroscientists Identify New Way Several Brain Areas Communicate

Mar. 3, 2015 Neuroscientists have identified a new pathway by which several brain areas communicate within the brain's striatum. The findings illustrate structural and functional connections that allow the brain ... full story

Highly Sensitive Detection of Malaria Parasites

Mar. 3, 2015 New assays can detect malaria parasites in human blood at very low levels and might be helpful in the campaign to eradicate malaria, reports a new study. An international team led by Ingrid Felger, ... full story

Bans Don't Help Smokers Quit, Researchers Say

Mar. 3, 2015 No significant change in home habits of smokers have been observed in the aftermath of a ban on smoking in public spaces, researchers report. Greater inspiration to kick the habit likely comes from ... full story

Poor Heart Function Could Be Major Risk for Alzheimer's Disease

Mar. 3, 2015 Heart function has been associated with the development of dementia and Alzheimer's disease through a new study. Participants with decreased heart function, measured by cardiac index, were two to ... full story

Divorce Fuels Kids' Sugary Beverage Consumption, Study Finds

Mar. 3, 2015 Children of recently separated or divorced families are likelier to drink sugar-sweetened beverages than children in families where the parents are married, putting them at higher risk for obesity ... full story

Researchers Investigate Possible Colon Cancer Risk for New Generation of Weight-Loss Drugs

Mar. 3, 2015 Gastric bypass and similar stomach-shrinking surgeries are a popular option for obese patients looking to lose weight or treat type 2 diabetes. While the surgeries have been linked to a decreased ... full story

Marijuana: The Allergen You Never Knew Existed

Mar. 3, 2015 As marijuana’s legal status throughout the country continues to change, people should know it can cause allergic ... full story

Pregnant Women With Asthma Need to Curb Urge to Ask for Antibiotics

Mar. 3, 2015 Twice as many children born to mothers who took antibiotics during pregnancy were diagnosed with asthma by age 3 than children born to mothers who didn’t take prenatal antibiotics, a new study has ... full story

Air Pollution Linked to Slower Cognitive Development in Children

Mar. 3, 2015 Attendance at schools exposed to high levels of traffic-related air pollution is linked to slower cognitive development among 7- to 10-year-old children in Barcelona, according to a new ... full story

Administering Sedatives for Patients Receiving General Anesthesia Questioned

Mar. 3, 2015 Although sedatives are often administered before surgery, a randomized trial finds that among patients undergoing elective surgery under general anesthesia, receiving the sedative lorazepam before ... full story

Stress Markers in Unemployed Linked to Poor Health

Mar. 3, 2015 It appears that stress markers in unemployed people can be found, independent of smoking, alcohol consumption and overweight/obesity. Results from a study suggest that long-term unemployment may be ... full story

Vaccine Skeptics Aren't Swayed by Emotional Scare Tactics

Mar. 3, 2015 On the heels of an American nationwide measles outbreak comes a report that campaigns aimed at scaring people about the consequences of non-vaccination might not be as effective as many think. ... full story

Time to 'Just Say No' to Behavior-Calming Drugs for Alzheimer Patients? Experts Say Yes

Mar. 3, 2015 Doctors write millions of prescriptions a year for drugs to calm the behavior of people with Alzheimer’s disease and other types of dementia. But non-drug approaches actually work better, and carry ... full story

Educating College Students on Drinking Risks Can Help Lessen Drinking Behaviors, but Only Temporarily, Study Finds

Mar. 3, 2015 Briefly counseling college students on the dangers of binge drinking is effective in lowering heavy drinking levels among many students, but only temporarily. Three out of four will be right back ... full story

Losing a Spouse Often Too Hastily Linked to Depression

Mar. 3, 2015 Loneliness brought about by the death of a spouse can trigger a wider network of depression-like symptoms, a study has found, but authors suggest that doctors are often too quick to attribute these ... full story

Family Based Interpersonal Psychotherapy for Depressed Preadolescents Is More Effective Than Child-Centered Therapy

Mar. 3, 2015 Family Based Interpersonal Psychotherapy (FB-IPT) is more effective in treating preadolescent children with depression compared to child-centered therapy (CCT), a recent study has found. ... full story

Defect Responsible for Memory Impairment in Aging Found

Mar. 3, 2015 Everyone worries about losing their memory as they grow older—memory loss remains one of the most common complaints of the elderly. But the molecular reasons behind the processes remain unclear, ... full story

Clues to Early Detection of Bipolar Disorders in High-Risk Children

Mar. 3, 2015 A strong link has been made between subthreshold manic episodes and likelihood of developing bipolar disorder in children of parents with bipolar disorder. The study’s findings could improve ... full story

Advisory About Not Feeding Peanuts to Infants and Young Children at Risk for Peanut Allergy

Mar. 3, 2015 Pediatric otolaryngologists and surgeons are concerned with parents getting the wrong message regarding the safety/desirability of letting babies and young children eat peanuts to prevent them from ... full story

BPA Exposure Linked to Autism Spectrum Disorder, Study Reports

Mar. 2, 2015 A newly published study is the first to report an association between bisphenol-A (BPA), a common plasticizer used in a variety of consumer food and beverage containers, with autism spectrum disorder ... full story

Is 'the Dress' White and Gold or Blue and Black? Visual Perception Expert Weighs in

Mar. 2, 2015 On Feb. 26, a picture of a cocktail dress originally uploaded to the blog Tumblr swept the Internet and managed to divide the population over a simple question: What color is the dress? Some viewers ... full story

When I'm 64 -- I'll Still Have Hot Flashes?

Mar. 2, 2015 Some 40 percent of women 60 to 65 years old still have hot flashes. For many, the hot flashes are occasional and mild, but for some, they remain really troublesome. Sexual symptoms also remain a ... full story

Growth Screening Could Help Detect Celiac Disease in Kids

Mar. 2, 2015 Screening for five growth parameters helped detect celiac disease (CD) with good accuracy in both boys and girls because growth falters in most children with CD, according to a new article. CD is an ... full story

Peanut Consumption Associated With Decreased Total Mortality and Mortality from Cardiovascular Diseases

Mar. 2, 2015 Researchers have examined the association of nut and peanut consumption with mortality among low-income and racially diverse populations and found that intake of peanuts was associated with fewer ... full story

Study on Adolescent Bariatric Surgery Safety Concludes

Mar. 2, 2015 Cardiovascular risks of severe pediatric obesity, assessed among a recent study, have been recently published. The authors found that severely obese adolescents carry not only excess weight, but also ... full story

Lycopene May Ward Off Kidney Cancer in Older Women

Mar. 2, 2015 A higher intake by postmenopausal women of the natural antioxidant lycopene, found in foods like tomatoes, watermelon and papaya, may lower the risk of renal cell carcinoma, a type of kidney cancer, ... full story

Mutation May Cause Early Loss of Sperm Supply

Mar. 2, 2015 Problems in a gene responsible for producing the protein TAF4b leave mice -- and maybe men -- unable to sustain sperm production. As embryos, mice lacking the protein failed to develop an adequate ... full story

Why Nitrate Supplementation May Increase Athletic Performance

Mar. 2, 2015 Walk down the aisles of any food supplement store and you'll see that the use of nitrate supplements by athletes and fitness buffs has been popular for years. The hope is that these supplements will ... full story

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NASA Ames Reproduces the Building Blocks of Life in Laboratory

Mar. 4, 2015 NASA scientists studying the origin of life have reproduced uracil, cytosine, and thymine, three key components of our hereditary material, in the laboratory. They discovered that an ice sample ... full story

Lightning Plus Volcanic Ash Make Glass

Mar. 3, 2015 Researchers have proposed a mechanism for the generation of glass spherules in geologic deposits through the occurrence of volcanic lightning. The existence of fulgurites -- glassy products formed in ... full story

First Scientific Publication from Data Collected at National Synchrotron Light Source II

Mar. 3, 2015 Just weeks after NSLS-II achieved first light, a team of scientists tested a setup that yielded data on thermoelectric materials. To test the optical performance and components of the beamline, the ... full story

New Tech Could Significantly Cut Carbon Dioxide Emissions

Mar. 3, 2015 A provisionally patented technology could revolutionize carbon dioxide capture and help significantly reduce pollution ... full story

Float Like a Mosquito: Mechanical Logic May Inspire Aquatic Robots, Better Boats

Mar. 3, 2015 By examining the forces that the segments of mosquito legs generate against a water surface, researchers have unraveled the mechanical logic that allows the mosquitoes to walk on water, which may ... full story

Flower-Like Magnetic Nanoparticles Target Difficult Tumors

Mar. 3, 2015 Next-generation magnetic nanoparticles (MNPs) may soon be treating deep-seated and difficult-to-reach tumors within the human ... full story

Step Change for Screening Could Boost Biofuels

Mar. 3, 2015 Researchers have developed a new way of rapidly screening yeasts that could help produce more sustainable biofuels. The new technique could also be a boon in the search for new ways of deriving ... full story

UK Cities Including London Not as 'Smart' as Global Counterparts

Mar. 3, 2015 Major cities in the UK are falling behind their international counterparts in terms of their use of smart technologies, according to a new study. The research has found that smart cities in the UK, ... full story

The Rub With Friction: News Rules of Friction at the Microscopic Level

Mar. 3, 2015 Scientists have explored friction at the microscopic level. They discovered that the force generating friction is much stronger than previously thought. The discovery is an important step toward ... full story

Networks of Micro-Drones: What Can They Be Expected to Do?

Mar. 3, 2015 Micro-drones are already being put to use in a large number of areas: These small aircraft face extensive requirements when performing aerial observation tasks or when deployed in the field of ... full story

New Data on the Nature of Dark Matter

Mar. 3, 2015 Recent research contributes to the effort to determine the nature of dark matter, one of the most important mysteries in physics. As indirect evidence provided by its gravitational effects, dark ... full story

Core Work: Iron Vapor Gives Clues to Formation of Earth and Moon

Mar. 2, 2015 One of the world's most powerful radiation sources provides scientists clues about Earth's formation and how iron ... full story

NASA Spacecraft Nears Historic Dwarf Planet Arrival

Mar. 2, 2015 NASA's Dawn spacecraft has returned new images captured on approach to its historic orbit insertion at the dwarf planet Ceres. Dawn will be the first mission to successfully visit a dwarf planet when ... full story

‘Superhero Vision’ Technology Measures European Lake’s Water Quality from Space

Mar. 2, 2015 An international team of researchers has demonstrated a way to assess the quality of water on Earth from space by using satellite technology that can visualize pollution levels otherwise invisible to ... full story

Life 'Not as We Know It' Possible on Saturn's Moon Titan

Feb. 27, 2015 A new type of methane-based, oxygen-free life form that can metabolize and reproduce similar to life on Earth has been modeled. It is theorized to have a cell membrane, composed of small organic ... full story

Living on the Edge: Stars Found Far from Galaxy Center

Feb. 27, 2015 Astronomers using data from NASA's Wide-field Infrared Survey Explorer, or WISE, have found a cluster of stars forming at the very edge of our Milky Way galaxy. This is the first time astronomers ... full story

Freeze! Watching Alloys Change from Liquid to Solid Could Lead to Better Metals

Feb. 26, 2015 If you put a camera in the ice machine and watched water turn into ice, the process would look simple. But the mechanism behind liquids turning to solids is actually quite complex, and understanding ... full story

New NASA Space Cowboy Successfully Deploys Its 'Lasso'

Feb. 26, 2015 Like a cowboy at a rodeo, NASA's newest Earth-observing satellite, the Soil Moisture Active Passive (SMAP), has triumphantly raised its "arm" and unfurled a huge golden "lasso" (antenna) that it will ... full story

New Insight Found in Black Hole Collisions

Feb. 26, 2015 New research by an astrophysicist provides revelations about the most energetic event in the universe -- the merging of two spinning, orbiting black holes into a much larger black ... full story

MUSE Goes Beyond Hubble: Looking Deeply Into the Universe in 3-D

Feb. 26, 2015 The MUSE instrument on ESO's Very Large Telescope has given astronomers the best ever three-dimensional view of the deep universe. After staring at the Hubble Deep Field South region for only 27 ... full story

Modeling Chimp Behavior? Try Using Laws That Govern Matter

Mar. 3, 2015 To simulate chimp behavior, scientists created a computer model based on equations normally used to describe the movement of atoms and molecules in a confined space. An interdisciplinary research ... full story

The Taming of Magnetic Vortices: A Unified Theory for Skyrmion-Materials

Mar. 3, 2015 Magnetic vortex structures, so-called skyrmions, could in future store and process information very efficiently. They could also be the basis for high-frequency components. For the first time, a team ... full story

Reading Speed Harnessed to Automatically Control Text Display Rates

Mar. 3, 2015 Reading a text is something that each of us does at our own individual pace. This simple fact has been exploited by computer scientists who have developed a software system that recognizes how fast a ... full story

New Technique Improves Forecasts for Canada's Prized Salmon Fishery

Mar. 2, 2015 A method for analyzing and predicting nature's dynamic and interconnected systems has improved forecasts of populations of Fraser River Sockeye Salmon, a highly prized fishery in British Columbia, ... full story

Perfect NCAA Bracket? Near Impossible: Mathematician Says

Mar. 2, 2015 The odds of picking a perfect bracket for the NCAA men's basketball March Madness championship tournament are a staggering less than one in 9.2 quintillion (that's 9,223,372,036,854,775,808), ... full story

Important Step Towards Quantum Computing: Metals at Atomic Scale

Mar. 2, 2015 Scientists report that they could observe experimentally the current flow along channels at the crystal surfaces of topological insulators. The channels are less than one nanometer wide and extend ... full story

Breakthrough in Organic Light Emitting Diodes Technology

Mar. 2, 2015 Organic light emitting diodes (OLEDs), which are made from carbon-containing materials, have the potential to revolutionize future display technologies, making low-power displays so thin they'll wrap ... full story

Scientists Trick the Light Fantastic

Mar. 2, 2015 What if one day, your computer, TV or smart phone could process data with light waves instead of an electrical current, making those devices faster, cheaper and more sustainable through less heat and ... full story

3-D Printing Offers Innovative Method to Deliver Medication

Mar. 2, 2015 3-D printing could become a powerful tool in customizing interventional radiology treatments to individual patient needs, with clinicians having the ability to construct devices to a specific size ... full story

The Better to See You With: Prosthetic Leg Would Keep an Eye on Path Ahead

Feb. 27, 2015 A mechanical engineer and his team have developed a computer-controlled camera that enables their robotic ankle to see where it is ... full story

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Vampire Bats: Who Bit Whom?

Mar. 4, 2015 Scientists discovered a new retrovirus “fossil” found in the common vampire bat which is homologous to retroviruses in rodents and primates. The results suggest the recent circulation of an ... full story

Lasting Severe Weather Impact Found in Feathers of Young Birds

Mar. 3, 2015 While studying a ground-nesting bird population near El Reno, Okla., a research team found that stress during a severe weather outbreak of May 31, 2013, had manifested itself into malformations in ... full story

3-D Printed Parts Provide Low-Cost, Custom Alternatives for Lab Equipment

Mar. 3, 2015 The 3-D printing scene, a growing favorite of do-it-yourselfers, has spread to the study of plasma physics. With a series of experiments, researchers have found that 3-D printers can be an important ... full story

Plants Detect Bacterial Endotoxin in Similar Process to Mammals

Mar. 3, 2015 Similar to humans and animals, plants possess an innate immune system that protects them from invading pathogens. Molecular structures that only occur in pathogens enable their recognition and ... full story

Mystery Solved: Why Seashells' Mineral Forms Differently in Seawater

Mar. 3, 2015 For almost a century, scientists have been puzzled by a process that is crucial to much of the life in Earth's oceans: Why does calcium carbonate, the tough material of seashells and corals, ... full story

Spurring Production of a Sluggish Enzyme for Crop Yields

Mar. 3, 2015 Scientists have found a way to improve production of the Rubisco enzyme, essential to plant growth. Important staple crops, such as wheat, cotton and rice stand to ... full story

Some Tropical Plants Pick the Best Hummingbirds to Pollinate Flowers

Mar. 3, 2015 Rather than just waiting patiently for any pollinator that comes their way to start the next generation of seeds, some plants appear to recognize the best suitors and 'turn on' to increase the chance ... full story

In Hot and Cold Water: The Private Lives of 'Hoff' Crabs Revealed

Mar. 3, 2015 Researchers have shed light on the private life of a new species of deep-sea crab, previously nicknamed the 'Hoff' crab because of its hairy ... full story

Gorilla Origins of the Last Two AIDS Virus Lineages Confirmed

Mar. 3, 2015 Two of the four known groups of human AIDS viruses (HIV-1 groups O and P) have originated in western lowland gorillas, according to new research. The scientists conducted a comprehensive survey of ... full story

Methane Oxidation Fuelled by Algal Oxygen Production

Mar. 3, 2015 Methane emissions are strongly reduced in lakes with anoxic bottom waters. But – contrary to what has previously been assumed – methane removal is not always due to archaea or anaerobic bacteria. ... full story

A New Level of Earthquake Understanding: Surprise Findings from San Andreas Fault Rock Sample

Mar. 3, 2015 Researchers studied quartz from the San Andreas Fault at the microscopic scale, the scale at which earthquake-triggering stresses originate. The results could one day lead to a better understanding ... full story

Family Log of Spring's Arrival Helps Predict Climate-Driven Change

Mar. 2, 2015 Rare historic records of the changing seasons are helping scientists better understand how woodland trees and flowers are responding to climate change. Scientists used records -- compiled by one ... full story

Munching Bugs Thwart Eager Trees, Reducing the Carbon Sink

Mar. 2, 2015 Hungry, plant-eating insects may limit the ability of forests to take up elevated levels of carbon dioxide in the atmosphere, reducing their capacity to slow human-driven climate change, a new study ... full story

Blend of Polymers Could One Day Make Solar Power Lighter, Cheaper and More Efficient

Mar. 2, 2015 Scientists are reporting advances on how to one day make solar cells stronger, lighter, more flexible and less expensive when compared with the current silicon or germanium technology on the ... full story

Environment May Change, but Microbiome of Queen Bees Does Not

Mar. 2, 2015 Researchers have characterized the gut microbiome of honey bee queens. This is the first thorough census of the gut microbiome -- which consists of all the microorganisms that live in the gut of the ... full story

On-Board School Bus Filtration System Reduces Pollutants by 88 Percent

Mar. 2, 2015 An on-board air filtration system developed specifically for school buses reduces exposure to vehicular pollutants by up to 88 percent, according to a new ... full story

Norwegian Mammals and Birds Have Many Different Methods of Surviving Long, Intense Winter Nights

Mar. 2, 2015 Norwegian mammals and birds have many different methods of surviving long, intense winter nights. A biologist reveals their secrets for ... full story

Enhancing High-Temperature Tolerance in Plants: Effective on Rice and Tomatoes

Mar. 2, 2015 Agricultural researchers have identified for the first time that theE-2-hexenal, a plant-derived chemical substance, can induce a plant's stress response to high ... full story

Genetics Reveals Where Emperor Penguins Survived the Last Ice Age

Mar. 1, 2015 A study of how climate change has affected emperor penguins over the last 30,000 years found that only three populations may have survived during the last ice age, and that the Ross Sea in Antarctica ... full story

Introverts Prefer Mountains

Feb. 27, 2015 In a series of three studies, researchers tested whether there is a link between personality and an aspect of physical ecology: flat terrain versus mountainous terrain. The study found that only one ... full story

Archaeologists Open Mysterious Lead Coffin Found Buried Just Feet from the Former Grave of King Richard III

Mar. 2, 2015 Richard III is the only male to be discovered at infamous former car-park site. A mysterious lead coffin found close to the site of Richard III's hastily dug grave at the Grey Friars friary has now ... full story

How Were Fossil Tracks Made by Early Triassic Swimming Reptiles So Well Preserved?

Feb. 27, 2015 That swim tracks made by tetrapods occur in high numbers in deposits from the Early Triassic is well known. What is less clear is why the tracks are so abundant and well preserved. Paleontologists ... full story

DNA Evidence Shows Surprise Cultural Connections Between Britain and Europe 8,000 Years Ago

Feb. 27, 2015 DNA evidence shows surprise cultural connections between Britain and Europe 8,000 years ago. Researchers found evidence for a variety of wheat at a submerged archaeological site off the south coast ... full story

How Mantis Shrimp Evolved Many Shapes With Same Powerful Punch

Feb. 26, 2015 The miniweight boxing title of the animal world belongs to the mantis shrimp, a cigar-sized crustacean whose front claws can deliver an explosive 60-mile-per-hour blow akin to a bullet leaving the ... full story

Crocodiles Rocked Pre-Amazonian Peru: Seven Crocodile Species Found in Single 13-Million-Year-Old Bone Bed

Feb. 24, 2015 Thirteen million years ago, as many as seven different species of crocodiles hunted in the swampy waters of what is now northeastern Peru, new research shows. This hyperdiverse assemblage, revealed ... full story

Climate-Change Clues from Turtles of Tropical Wyoming

Feb. 24, 2015 Tropical turtle fossils discovered in Wyoming reveal that when Earth got warmer, prehistoric turtles headed north. But if today's turtles try the same technique to cope with warming habitats, they ... full story

Kenyan Fossils Show Evolution of Hippos

Feb. 24, 2015 A French-Kenyan research team has just described a new fossil ancestor of today's hippo family. This discovery bridges a gap in the fossil record separating these animals from their closest ... full story

Asian Tree Rings Explain Historical Plague Outbreaks in Europe

Feb. 24, 2015 Climate-driven plague outbreaks in Asia were repeatedly transmitted over several centuries into southern European harbors, an international team of researchers has found. This finding contrasts the ... full story

Sea Urchins, Sand Dollars Thrived With Time

Feb. 23, 2015 New work on echinoids -- marine animals like sea urchins and sand dollars -- gives scientists a reason to rethink a classical pattern of evolution. Fossil-based studies have traditionally indicated ... full story

Ancient and Modern Cities Aren't So Different

Feb. 20, 2015 Despite notable differences in appearance and governance, ancient human settlements function in much the same way as modern cities, according to new ... full story

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US Spends More on Cancer Care, Saves Fewer Lives Than Western Europe

Mar. 2, 2015 Despite sharp increases in spending on cancer treatment, cancer mortality rates in the United States have decreased only modestly since 1970, a study has found. "Our results suggest that cancer care ... full story

Disease-Carrying Fleas Abound on New York City's Rats

Mar. 2, 2015 In the first study of its kind since the 1920s, rats in New York City were found to carry a flea species capable of transmitting plague pathogens. Among them: 500-plus Oriental rat fleas, notorious ... full story

Survey of Teen Dating Violence Among US High School Students

Mar. 2, 2015 A survey of US high school students suggests that 1 in 5 female students and 1 in 10 male students who date have experienced some form of teen dating violence (TDV) during the past 12 months. "These ... full story

Study Identifies Teens at-Risk for Synthetic Marijuana Use

Mar. 2, 2015 One of the first American national studies to examine risk factors for use of synthetic marijuana among a large, nationally representative sample of teens. Popular among teens, in 2011, synthetic ... full story

Pediatricians Face Increasing Pressure to Delay Vaccinations, and More Are Giving in to Parents' Requests

Mar. 2, 2015 Pediatricians are facing increasing pressure from some parents who want to spread out the recommended vaccine schedule for their children by postponing vaccines, pointing to a need for improved ... full story

Predicting Human Crowds With Statistical Physics

Feb. 27, 2015 A general law of how pedestrians interact in a crowd can be used to create realistic crowds in virtual reality games and to make public spaces ... full story

Global Health Experts Call Into Question Sub-Saharan Cancer Data

Feb. 27, 2015 Global health experts believe the current data on cancer prevalence, incidence and mortality in sub-Saharan Africa -- which determines how billions of pounds of international development money is ... full story

Suicide Rates Rising for Older US Adults

Feb. 27, 2015 Suicide rates for adults 40-64 years of age in the US have risen about 40 percent since 1999, with a sharp rise since 2007. One possible explanation could be the detrimental effects of the economic ... full story

Experts Warn of Stem Cell Underuse as Transplants Reach One Million Worldwide

Feb. 27, 2015 Findings of a new reveal striking variations between countries and regions in the use of this lifesaving stem cell transplantation, and high unmet need due to a chronic shortage of resources and ... full story

Women Veterans Younger, More Depressed When Referred for Heart Test

Feb. 27, 2015 Women veterans face a different home front battle with heart disease. Younger and more depressed when getting attention for chest pain -- heart tests often show a surprising ... full story

Amphetamine Gets the Job Done: Using Drugs to Work Long Hours

Feb. 20, 2015 Drugs are usually associated with vulnerable social groups. New research reveals that amphetamine, however, is used by some in physically demanding manual jobs - to sustain long working ... full story

Basic Personality Changes Linked to Unemployment, Study Finds

Feb. 18, 2015 Unemployment can change peoples' core personalities, making some less conscientious, agreeable and open, which may make it difficult for them to find new jobs, according to new ... full story

Leader of the Pack: Study of Voles and Owls Show Rise of Individuals With Greatest Influence on Collective Group Behavior

Feb. 18, 2015 Who takes charge during a disaster or at an accident scene? The question has intrigued sociologists since Gustave Le Bon first studied "herd behavior" in nineteenth-century France. The question of an ... full story

How Income Fraud Made the Housing Bubble Worse

Feb. 18, 2015 New research reveals that, in low-income zip codes, IRS-reported incomes and earnings reported on mortgages in fact differed wildly from 2002 to 2005. The researchers place the blame for falsified ... full story

Women Seek Greater Variety in Men and Consumer Products Near Ovulation

Feb. 17, 2015 New research suggests women seek more options in dating partners near ovulation -- when they are most fertile -- which may lead them to also seek a greater variety of products and ... full story

Workplace Bullying a Vicious Circle

Feb. 17, 2015 Bullying at work grinds victims down and makes them an 'easy target' for further abuse according to new research. The research suggests that employers should not only crack down on workplace bullies, ... full story

People Value Resources More Consistently When They Are Scarce

Feb. 12, 2015 We tend to be economically irrational when it comes to choosing how we use resources like money and time but scarcity can convert us into economically rational decision makers, according to new ... full story

An Internet of Things Reality Check

Feb. 9, 2015 Connecting different kinds of devices, not just computers and communications devices, to the Internet could lead to new ways of working with a wide range of machinery, sensors, domestic and other ... full story

Increasing Individualism in US Linked With Rise of White-Collar Jobs

Feb. 5, 2015 Rising individualism in the United States over the last 150 years is mainly associated with a societal shift toward more white-collar occupations, according to new research. The study, which looked ... full story

Novel Method Projects Growth Potential of New Firms: Which Tech Businesses Will Thrive?

Feb. 5, 2015 New businesses spring up all the time in the U.S. But which ones have the greatest ability to become big? A new method based on an empirical study, projects the growth potential of high-tech firms ... full story

Teachers Become Healthier When They Learn

Mar. 2, 2015 Several studies have indicated a connection between learning and health. Researchers have now found that the health of school teachers is related to their level of work integrated ... full story

Teacher Prejudices Put Girls Off Math, Science, Study Suggests

Feb. 26, 2015 Although higher education has already opened the door to equal opportunities for women and minorities in the US in the math and science professions, a new study suggests that elementary school ... full story

Biology Teachers: Understanding Faith, Teaching Evolution Not Mutually Exclusive

Feb. 25, 2015 Discussing the relationship between science and faith, rather than avoiding the discussion, may better prepare future high school biology teachers for anticipating questions about evolution, ... full story

Education 'Experts' Cited in News Stories May Lack Expertise, Study Finds

Feb. 20, 2015 A study of education experts cited in news stories and blogs during 2013 finds that some lack background in education policy and ... full story

Delaying Children's School Entry Linked to Poor Academic Performance

Feb. 19, 2015 Delaying school entry for children could cause poorer academic performance, according to new research. Many parents are keen to hold their children back a year if they were born prematurely or in the ... full story

Teens Increasingly Sleep Deprived

Feb. 16, 2015 A new study found that female students, racial/ethnic minorities, and students of lower socioeconomic status are less likely to report regularly getting seven or more hours of sleep each night ... full story

Learning With All the Senses: Movement, Images Facilitate Vocabulary Learning

Feb. 5, 2015 "Atesi" -- what sounds like a word from the Elven language of Lord of the Rings is actually a Vimmish word meaning "thought". Scientists have used Vimmish, an artificial language specifically ... full story

Public and Scientists Express Strikingly Different Views About Science-Related Issues

Jan. 29, 2015 Despite similar views about the overall place of science in America, the general public and scientists often see science-related issues through a different lens, according to a new pair of ... full story

Can Synesthesia Be Taught? Colored Letters, Tasty Sounds?

Jan. 29, 2015 Can synesthesia have cognitive benefits and can it be taught? There are over 60 known types of synesthesia, a condition in which stimulation of one sense, such as taste, leads to automatic, ... full story

Concentrating on Word Sounds Helps Reading Instruction and Intervention

Jan. 28, 2015 A neuroimaging study by psychologist suggests that phonics shouldn't be overlooked in favor of a whole-language technique, a finding that could help improve treatment and diagnosis of common reading ... full story

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