Pictured here are Dr. Turi King and Professor Kevin Schürer from the University of Leicester.

Oldest horned dinosaur species in North America found in Montana

This is a fossil skull of <i>Aquilops americanus</i>.Scientists have named the first definite horned dinosaur species from the Early Cretaceous in North America, according to a study published December 10, 2014 in the open-access journal PLOS ONE...

Centipede's genome reveals how life evolved on our planet

Study co-author Prof. Ariel Chipman holds a jar of centipede specimens in his office at the Hebrew University of Jerusalem.Centipedes, those many-legged creatures that startle us in our homes and gardens, have been genetically sequenced for the first time. In a new study in the journal PLoS Biology, an...

Scientists estimate the total weight of plastic floating in the world's oceans

Nearly 269,000 tons of plastic pollution may be floating in the world's oceans, according to a study published December 10, 2014 in the open-access journal PLOS ONE by Marcus Eriksen...

Boosts in productivity of corn and other crops modify Northern Hemisphere carbon dioxide cycle

Each year in the Northern Hemisphere, levels of atmospheric carbon dioxide drop in the summer as plants "inhale," then climb again as they exhale after the growing season.

Teen use of e-cigarettes growing; Hawaii use rates higher than in mainland

Wills is the Interim Director of the Cancer Prevention and Control Program at the University of Hawaii Cancer Center.E-cigarette use among teenagers is growing in the U.S., and Hawaii teens take up e-cigarette use at higher rates than their mainland counterparts, a new study by University of Hawaii...

Kids' cartoon characters twice as likely to die as counterparts in films for adults

The findings prompt the authors to describe children's cartoons as "rife with death and destruction," with content akin to the "rampant horrors" of popular films for adults given restrictive age...

Greenhouse gases linked to African rainfall

Scientists may have solved a long-standing enigma known as the African Humid Period -- an intense increase in cumulative rainfall in parts of Africa that began after a long dry...

Penn research outlines basic rules for construction with a type of origami

Try it yourself: With a cut and a few folds, this structure could serve as a shelter or a microfluidic channel. Because the researchers' rules keep the hexagons in proportion once the cuts and folds are made, the technique can be applied broadly across length scales and material types.Origami is capable of turning a simple sheet of paper into a pretty paper crane, but the principles behind the paper-folding art can also be applied to making a microfluidic...

'Satiety hormone' leptin links obesity to high blood pressure

Leptin, a hormone that regulates the amount of fat stored in the body, also drives the increase in blood pressure that occurs with weight gain, according to researchers from Monash...

Surprising theorists, stars within middle-aged clusters are of similar age

A close look at the night sky reveals that stars don't like to be alone; instead, they congregate in clusters, in some cases containing as many as several million stars....

Electric eels deliver Taser-like shocks

Electric eels deliver Taser-like shocks.The electric eel -- the scaleless Amazonian fish that can deliver an electrical jolt strong enough to knock down a full-grown horse -- possesses an electroshock system uncannily similar to...

NASA Goddard instrument makes first detection of organic matter on Mars

The team responsible for the Sample Analysis at Mars (SAM) instrument suite on NASA's Curiosity rover has made the first definitive detection of organic molecules at Mars. Organic molecules are...

Researchers detect possible signal from dark matter

Could there finally be tangible evidence for the existence of dark matter in the Universe? After sifting through reams of X-ray data, scientists in EPFL's Laboratory of Particle Physics and...

Lethal control of wolves backfires on livestock

Washington State University wildlife biologist Rob Wielgus is studying lethal and non-lethal methods to keep wolves from preying on livestock.Washington State University researchers have found that it is counter-productive to kill wolves to keep them from preying on livestock. Shooting and trapping lead to more dead sheep and cattle...

West Antarctic melt rate has tripled: UC Irvine-NASA

A comprehensive, 21-year analysis of the fastest-melting region of Antarctica has found that the melt rate of glaciers there has tripled during the last decade.

Dragonflies on the hunt display complex choreography

This is a composite image of dragonfly carrying retroreflective markers. The markers are used to measure the orientation of the dragonfly's head and body during flight. The data from the measurements allows the underlying steering strategy to be inferred.The dragonfly is a swift and efficient hunter. Once it spots its prey, it takes about half a second to swoop beneath an unsuspecting insect and snatch it from the...

Swarms of Pluto-size objects kick-up dust around adolescent Sun-like star

This is an ALMA image of the dust surrounding the star HD 107146. Dust in the outer reaches of the disk is thicker than in the inner regions, suggesting that a swarm of Pluto-size planetesimals is causing smaller objects to smash together. The dark ring-like structure in the middle portion of the disk may be evidence of a gap where a planet is sweeping its orbit clear of dust.Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) may have detected the dusty hallmarks of an entire family of Pluto-size objects swarming around an adolescent version of our own Sun.

Carbon-trapping 'sponges' can cut greenhouse gases

In the fight against global warming, carbon capture -- chemically trapping carbon dioxide before it releases into the atmosphere -- is gaining momentum, but standard methods are plagued by toxicity,...

Antarctica: Heat comes from the deep

The Antarctic ice sheet is a giant water reservoir. The ice cap on the southern continent is on average 2,100 meters thick and contains about 70 percent of the world's...

Ground-based detection of super-Earth transit achieved

Astronomers have measured the passing of a super-Earth in front of a bright, nearby Sun-like star using a ground-based telescope for the first time. The transit of the exoplanet 55...

Migrating 'supraglacial' lakes could trigger future Greenland ice loss

Supraglacial lakes on the Greenland ice sheet can be seen as dark blue specks in the center and to the right of this satellite image.Predictions of Greenland ice loss and its impact on rising sea levels may have been greatly underestimated, according to scientists at the University of Leeds.

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