Today's Science News

Wednesday, March 4, 2015

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from universities, journals, and other organizations

Planet 'Reared' by Four Parent Stars

Mar. 4, 2015 Growing up as a planet with more than one parent star has its challenges. Though the planets in our solar system circle just one star -- our sun -- other more distant planets, called exoplanets, can ... full story

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

Experiments Support Conductivity Claims for Microbial Nanowires

Mar. 4, 2015 Scientific debate has been hot lately about whether microbial nanowires, the specialized electrical pili of the mud-dwelling anaerobic bacterium Geobacter sulfurreducens, truly possess metallic-like ... full story

Hurricanes Helped Accelerate Spread of Lionfish

Mar. 4, 2015 Just when you thought hurricanes couldn't get any scarier, think again. Their names roll of the tongue like a rogues' gallery: Floyd, Frances, Irene, Wilma and Andrew. But these aren't ... full story

Men Tend to Be More Narcissistic Than Women, Study Finds

Mar. 4, 2015 With three decades of data from more than 475,000 participants, a new study on narcissism reveals that men, on average, are more narcissistic than ... 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

Unlocking Key to Immunological Memory in Bacteria

Mar. 2, 2015 A powerful genome editing tool may soon become even more powerful. Researchers have unlocked the key to how bacteria are able to 'steal' genetic information from viruses and other foreign ... 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

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 2:08 pm EST

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Mental Health Soon After War-Zone Concussions Predicts Disability

Mar. 4, 2015 Evaluating military personnel with blast-related mild traumatic brain injuries, researchers have found that early symptoms of post-traumatic stress, such as anxiety, emotional numbness, flashbacks ... full story

New Models Yield Clearer Picture of Emissions' True Costs

Mar. 4, 2015 New models calculate and compare the true costs of various fuels to health, climate and the environment. Viewed this way, a gallon of gas costs $3.80 more than the pump price. The social cost of a ... full story

Can Exercise Training Prevent Premature Death in Elderly?

Mar. 4, 2015 Generation 100 is the first and largest randomized clinical study evaluating the effect of regular exercise training on morbidity and mortality in elderly people. "Epidemiological studies suggest ... full story

Twitter Helps Smokers Kick the Habit, Study Finds

Mar. 4, 2015 When subjects in a smoking cessation program tweet each other regularly, they're more successful at kicking the habit, according to a study. Specifically, daily 'automessages' that encourage and ... full story

Novel Drug Mechanism That Fights Brain Cancer Described by Researchers

Mar. 4, 2015 Researchers have developed and characterized a molecule that interferes with the internal regulation of cancer cells, causing them to self-destruct. The investigators performed a series of studies ... full story

Study Sheds Light on How Malaria Parasites Grow Exponentially

Mar. 4, 2015 The mysterious process by which malaria-related parasites spread at explosive and deadly rates inside humans and other animals has been uncovered by researchers for the first time. As drug-resistant ... full story

Obesity Is Associated With Brain's Neurotransmitters

Mar. 4, 2015 Researchers have revealed how obesity is associated with altered opioid neurotransmission in the brain. New research reveals how obesity is associated with altered functioning of brain's opioid ... full story

Retina Protein That May Help Conquer Blindness Discovered

Mar. 4, 2015 A protein in the retina that is crucial for vision has been discovered by researchers who report, for the first time, the key molecular mechanisms leading to visual degeneration and blindness. The ... full story

Basis for Cadmium Toxicity Uncovered

Mar. 4, 2015 Research has uncovered how the metal cadmium, which is accumulating in the food chain, causes toxicity in living cells. "Cadmium is a very important industrial metal, but exposure to it results in ... full story

Function of an Enzyme Critical to Male Fertility Described

Mar. 4, 2015 Researchers have filled in details of how an enzyme, through interactions with a network of nearly two dozen other genes, protects the integrity of the germ line by giving rise to a class of RNA ... full story

Oxytocin May Enhance Social Function in Psychiatric Disorders

Mar. 4, 2015 Inducing the release of brain oxytocin may be a viable therapeutic option for enhancing social function in psychiatric disorders, including autism spectrum disorders and schizophrenia, researchers ... full story

Marriages More Likely to End in Divorce When Wives Get Sick

Mar. 4, 2015 Countless couples have recited the words, ‘in sickness and in health’ on their wedding day with the intention of honoring those vows. But as it turns out, that may be easier said than ... full story

Aneurysm Screening Should Be Revisited, Say Experts

Mar. 4, 2015 Aneurysm screening for men over 65 should be revisited as it is unknown whether the benefits outweigh the harms, argue researchers. An abdominal aortic aneurysm (AAA) is a swelling (aneurysm) of the ... full story

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

An Alternative to Medical Marijuana for Pain?

Mar. 4, 2015 Medical marijuana is proliferating across the country due to the ability of cannabis ingestion to treat important clinical problems such as chronic pain. However, negative side effects and the ... full story

New Information on Parkinson’s: GDNF Not Needed by the Midbrain Dopamine System

Mar. 4, 2015 A key factor in the motor symptoms associated with Parkinson’s disease is the gradual destruction of dopamine neurons. The glial cell-derived neurotrophic factor, or GDNF, has been proven to ... full story

Robots for Stroke Rehabilitation

Mar. 4, 2015 A prototype of a robotic glove has been developed which stroke suffers can use in their own home to support rehabilitation and personal independence in receiving therapies. At the chronic stages of ... 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

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

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

Dog DNA Tests Alone Not Enough for Healthy Pedigree, Experts Say

Mar. 4, 2015 Breeding dogs on the basis of a single genetic test carries risks and may not improve the health of pedigree lines, experts warn. Only a combined approach that makes use of DNA analysis, health ... full story

Salt Increases Physical Performance in Resistance Competitions

Mar. 4, 2015 The effectiveness of salt on sports performance in triathletes has been evaluated by researchers. The athletes who added this supplement to their usual hydration routines during the competition took ... 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

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

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

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

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

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

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Making Night Vision, Thermal Imaging Affordable

Mar. 4, 2015 Researchers have created an electronic device using CMOS technology that detects electromagnetic waves to create images at nearly 10 terahertz, which is the highest frequency for electronic devices. ... full story

Reducing Greenhouse Gas Emissions With a More Effective Carbon Capture Method

Mar. 4, 2015 Trapping carbon dioxide (CO2) emissions from power plants and various industries could play a significant role in reducing greenhouse gas emissions in the future. But current materials that can ... full story

Energy-Generating Cloth Could Replace Batteries in Wearable Devices

Mar. 4, 2015 From light-up shoes to smart watches, wearable electronics are gaining traction among consumers, but these gadgets' versatility is still held back by the stiff, short-lived batteries that are ... full story

Pennies Reveal New Insights on Nature of Randomness

Mar. 4, 2015 Researchers have developed an algorithm that creates truly disordered packings of pennies for the first ... full story

Determining Recipes for Some of the World's Oldest Preserved Beers

Mar. 4, 2015 Some breweries have taken to resurrecting the flavors of ages past. Adventurous beer makers are extrapolating recipes from clues that archeologists have uncovered from old and even ancient brews ... full story

Where You Live Could Mean 'Greener' Alternatives Do More Harm Than Good

Mar. 4, 2015 Engineers propose a new 600-ton threshold that could indicate when switching to 'low carbon' alternatives may actually increase emissions. Although regions may welcome "green" technology like ... full story

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

Flexible Sensors Turn Skin Into a Touch-Sensitive Interaction Space for Mobile Devices

Mar. 4, 2015 If a mobile phone rings during a meeting, its owner often has to dig it out before it can be muted. A more discreet method would be to decline the incoming call by pressing on one of your fingers. ... full story

Solar Cells to Get Growth Boost, Price Cut

Mar. 4, 2015 Researchers have found that growing a type of film used to manufacture solar cells in ambient air gives it a growth boost. The finding could make manufacturing solar cells significantly ... full story

Cities Have a Memory and Interact With Their Neighbors

Mar. 4, 2015 Demographic changes in large cities depend on millions of individual decisions, but the population evolves depending on two factors: what 'reminds' them of their recent past and the existence of ... 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

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

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

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

How Big Data Can Be Used to Understand Major Events

Mar. 4, 2015 With the most unpredictable UK general election looming in modern times, how can big data be used to understand how elections are covered by the media? New research has for the first time analyzed ... full story

Simulating the Potential Spread of Measles

Mar. 4, 2015 To help the public better understand how measles can spread, a team of infectious disease computer modelers has launched a free, mobile-friendly tool that lets users simulate measles outbreaks in ... full story

Genetic Data Can Help Predict How Pine Forests Will Cope With Climate Change

Mar. 4, 2015 Data from only a small number of gene variants can predict which maritime pine trees are most vulnerable to climate change, scientists report. The results will improve computer models designed to ... 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

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

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

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Advancing Multiple Approaches for Characterizing Permafrost Microbes in a Changing Climate

Mar. 4, 2015 To better characterize the microbial activities in the thawing permafrost, scientists have reported on the application of multiple molecular technologies: ... full story

Cause of Tree-Killing Fungus Uncovered: Extra Genes

Mar. 4, 2015 Forest scientists believe they've discovered the root cause of a deadly tree fungus: extra genes. The fungus, Mycosphaerella populorum, uses extra genes to produce a toxin that can cause fatal ... full story

Amazon Deforestation 'Threshold' Causes Species Loss to Accelerate

Mar. 4, 2015 One of the first studies to map the impact of deforestation on biodiversity across entire regions of the Amazon has found a clear 'threshold' for forest cover below which species loss becomes more ... full story

Wild Yaks: Shaggy Barometers of Climate Change

Mar. 4, 2015 A new study finds that climate change and past hunting in the remote Tibetan Plateau is forcing female wild yaks onto steeper and steeper ... full story

Usual Prey Gone, a Fish Survives by Changing Predictably

Mar. 4, 2015 Without the Bahamas mosquitofish to eat, bigmouth sleepers slide down the food chain and survive on insects, snails and crustaceans. And, in so doing, sleepers' behaviors, ratio of males to females ... full story

Widespread Risk of Infectious Diseases to Wild Bees, New Study Reveals

Mar. 4, 2015 A network of viruses, which were previously associated with managed honeybees, may now pose a widespread risk to bumblebees in the wild, according to a new study. The study revealed multiple ... full story

Why Many Similar Species Coexist Within Complex Ecosystems, Such as Amazon Rainforest or Coral Reefs

Mar. 4, 2015 Scientists suggest one possible answer for the enigma of stability in complex ecosystems like the Amazon rainforest or coral reefs. Many similar species coexist in these complex ecosystems without ... full story

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

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

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

Scientists Question Rush to Build Nicaragua Canal

Mar. 4, 2015 A consortium of environmental scientists has expressed strong concern about the impact of a controversial Central American canal across Nicaragua. The path of the Nicaragua Interoceanic Grand Canal ... full story

New Data Provided by Seabed Sediments on the Climate Within the Mediterranean Basin Over the Course of the Last 20,000 Years

Mar. 4, 2015 Scientists have found new data on the weather in the Mediterranean basin over the course of the past 20.000 years thanks to the chemical composition of sediments deposited in its ... 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

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

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

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

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

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

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

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

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

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

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

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

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Agreement on Best Estimates of Breast Cancer Overdiagnosis Urgently Needed to Inform Women

Mar. 4, 2015 More than any other debate about overdiagnosis, the discussion of breast cancer has spilt from the pages of the specialist medical press into the public domain, argues a public health expert, stating ... full story

How Much Overdetection Is Acceptable in Cancer Screening?

Mar. 4, 2015 People have highly variable views on how much overdetection is acceptable in cancer screening, finds a UK ... 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

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

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

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

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

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