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Dinosaurs are often thought of as large, fierce animals, but new research highlights a previously overlooked diversity of small dinosaurs. In the Journal of Vertebrate Paleontology, a team of paleontologists from the University of Toronto, Royal Ontario Museum, Cleveland Museum of Natural History and University of Calgary have described a new dinosaur, the smallest plant-eating dinosaur spe

The feared Legionella pneumophila bacteria is responsible for legionellosis, an infectious disease that can lead to pneumonia. In order to infect us, this pathogen has developed a complex method enabling it to camouflage itself and go unnoticed in our cells, thus avoiding these acting against the infectious bacteria.

Harvard physicists have developed a novel technique that can detect molecular variants in chemical mixtures – greatly simplifying a process that is one of the most important, though time-consuming, processes in analytical chemistry.

Scientists have reversed behavioral and brain abnormalities in adult mice that resemble some features of schizophrenia by restoring normal expression to a suspect gene that is over-expressed in humans with the illness. Targeting expression of the gene Neuregulin1, which makes a protein important for brain development, may hold promise for treating at least some patients with the brain disorder, sa

Researchers at Johns Hopkins have unraveled the molecular foundations of cocaine's effects on the brain, and identified a compound that blocks cravings for the drug in cocaine-addicted mice. The compound, already proven safe for humans, is undergoing further animal testing in preparation for possible clinical trials in cocaine addicts, the researchers say. "It was remarkably serendipitous that

In the tropics at heights more than 10 miles above the surface, the prevailing winds alternate between strong easterlies and strong westerlies roughly every other year. This slow heartbeat in the tropical upper atmosphere, referred to as the quasibiennial oscillation (QBO), impacts the winds and chemical composition of the global atmosphere and even the climate at Earth's surface.

Researchers at the Universities of Leeds and Chicago have uncovered an important mechanism behind the generation of astrophysical magnetic fields such as that of the Sun.

Why is it that within a homogeneous population of the same species, some individuals live three times as long as others? This question has stumped scientists for centuries.

While humans have harnessed the power of yeast to ferment bread and beer, the function of yeast or other types of fungi that live in and on the human body is not well understood. In the first study of human fungal skin diversity, National Institutes of Health researchers sequenced the DNA of fungi at skin sites of healthy adults to define the normal populations across the skin and to provide a fr

Canadian and Swedish scientists today released genome sequences of two of the most economically important forest trees in the world.

In a series of lab experiments designed to unravel the workings of a key enzyme widely considered a possible trigger of rheumatoid arthritis, researchers at Johns Hopkins have found that in the most severe cases of the disease, the immune system makes a unique subset of antibodies that have a disease-promoting role.
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As weather warms up off the coast of France, blooms of plankton have once again begun to form, creating a beautiful, multicolored swirl visible from space.NASA's Terra and Aqua satellites acquired these images of the colorful blooms on April 20 and May 4, according to the NASA Earth Observatory. On the later date, a noticeably larger bloom occurred, fueled by nutrient ru...
A largely forgettable rainfall provoked a growth in vegetation that, followed by a hot, near-record dry period, simply resulted in more fuel for potential wildfires.When it comes to Southern California's increasingly perilous fire season, you can blame both the lack of rain and the little rain we did have.
The appeal of owning your own property — and all the private goods that came with it — may have convinced nomadic humans to settle down and take up farming. So says a new study that tried to puzzle out why early farmers bothered with agriculture.
Douglas Trumbull's new project would use fast frame rates, huge screens, 4K digital for an "immersive" experience. Are audiences ready?
Chris Hadfield has conquered space. Now he's conquering the Internet, too.
Neuroscientist Henry Markram says he can build a supercomputer replica of the human brain. Now he has $1.3 billion to prove it.
Hospitals hoping to attract patients and build goodwill are teaming up with medical-screening companies to promote tests they say might prevent deadly strokes or heart disease. What their promotions don’t say is that an influential government panel recommends against many of the tests for people without symptoms or risk factors.
I detest household bugs. Abhor them. There isn’t a word strong enough to describe how I feel about bugs in my home. That hatred provokes guilt, because I fancy myself an environmentalist. As such, I’m supposed to feel a kinship with all creatures. We’re connected in a circle of life, a colorful tapestry, a delicate web of interdependence.
Bodily waste is widely considered a topic not to be discussed in polite company; it’s something to be flushed and forgotten. But a new book argues that waste, in all its human and animal forms, is worth getting to know intimately
Bacteria that live in the gut have been used to reverse obesity and Type-2 diabetes, animal studies show.
Vast reserves of shale oil is set to make the US an exporter rather than a leading importer, delivering a blow to Middle East oil producers that can expect to see demand fall, an International Energy Agency report observes.
The Sun has unleashed the most powerful eruption - a solar flare - of 2013 so far.
If Mercury was an orange, the juicy bit would all be dense metallic core, while planets further out would be peaches with pit-like cores – here's why
Big data might one day allow us to project how conflicts will develop, but choosing whether and how to intervene will always be difficult
New findings about the properties of fossil amber could shed light on glass and glass-like materials.
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