日期:2015-04-02 A common growth-promoting hormone used worldwide in the cattle industry has been found to affect the sexual behaviors of fish at a very low concentration in waterways -- with potentially serious ecological and evolutionary consequences. Researchers... 阅读全文>> 日期:2015-04-02 Male mice sing surprisingly complex songs to seduce females, sort of like songbirds, according to a new Duke study appearing April 1 in the Frontiers of Behavioral Neuroscience. For more than 50 years, it has been known that mice sing. That is, they... 阅读全文>> 日期:2015-04-02 A team of scientists led by the U.S. Geological Survey found that polar bears, increasingly forced on shore due to sea ice loss, may be eating terrestrial foods including berries, birds and eggs, but any nutritional gains are limited to a few indivi... 阅读全文>> 日期:2015-04-01 Scientists have uncovered the earliest fossilised evidence of an insect caring for its young. The findings, published in the journal eLife, push back the earliest direct evidence of insect brood care by more than 50 million years, to at least 100 mi... 阅读全文>> 日期:2015-04-01 A better method for predicting the number of hurricanes in an upcoming season has been developed by a team of University of Arizona atmospheric scientists. The UA team's new model improves the accuracy of seasonal hurricane forecasts for the North A... 阅读全文>> 日期:2015-03-31 Physicists at the Universities of Bonn and Cambridge have succeeded in linking two completely different quantum systems to one another. In doing so, they have taken an important step forward on the way to a quantum computer. To accomplish their feat... 阅读全文>> 日期:2015-03-31 A short burst of intensive exercise before eating a high fat meal is better for blood vessel function in young people than the currently recommended moderate-intensity exercise, according to a new study from the University of Exeter. Cardiovascular... 阅读全文>> 日期:2015-03-31 Characterizing associations between socioeconomic factors and children's brain development, a team including investigators from nine universities across the country reports correlative links between family income and brain structure. Relationships b... 阅读全文>> 日期:2015-03-31 Researchers surveying for endangered primates in national parks and forest reserves of Ivory Coast found, to their surprise, that most of these protected areas had been turned into illegal cocoa farms, a new study reports. The researchers surveyed 2... 阅读全文>> 日期:2015-03-31 The first study to investigate the relationship between eating fruit and vegetables containing pesticide residues and the quality of men's semen has shown a link with lower sperm counts and percentages of normally-formed sperm. The study, which is p... 阅读全文>> 日期:2015-03-30 New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' According to work published in journal Science on 27 March, the bacteria can load electrons onto and discharge electrons from microscopic particle... 阅读全文>> 日期:2015-03-30 Honey bees use different sets of genes, regulated by two distinct mechanisms, to fight off viruses, bacteria and gut parasites, according to researchers at Penn State and the Georgia Institute of Technology. The findings may help scientists develop... 阅读全文>> 日期:2015-03-30 A new paper to be published in the journal Zootaxa (April 6, 2015) describes 30 new insect species in a single genus, Megaselia, of the fly family Phoridae. Describing 30 species in a single paper is rare, but what's especially striking is that all... 阅读全文>> 日期:2015-03-30 Say you're out shopping for basic household goods -- perhaps orange juice and soup. Or light bulbs. Or diapers for your young child. How do you choose the products you buy? Is it a complicated decision, or a simple one? It could be complex: Factors... 阅读全文>> 日期:2015-03-30 A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much as 18 percent in certain areas over nearly two decades, providi... 阅读全文>> 日期:2015-03-30 In the world of bird fashion, the guys seem to have all the fun: brighter feathers, sharper accessories, more pizzazz. Researchers going back to Charles Darwin have focused on the contrast between the sexes, attributing the males' brighter colors to... 阅读全文>> 日期:2015-03-30 Bioplastics made from protein sources such as albumin and whey have shown significant antibacterial properties, findings that could eventually lead to their use in plastics used in medical applications such as wound healing dressings, sutures, cathe... 阅读全文>> 日期:2015-03-25 A frog in Ecuador's western Andean cloud forest changes skin texture in minutes, appearing to mimic the texture it sits on. Originally discovered by a Case Western Reserve University PhD student and her husband, a projects manager at Cleveland Metro... 阅读全文>> 日期:2015-03-25 A 400 kilometre-wide impact zone from a huge meteorite that broke in two moments before it slammed into the Earth has been found in Central Australia. The crater from the impact millions of years ago has long disappeared. But a team of geophysicists... 阅读全文>> 日期:2015-03-25 Radiation suddenly contaminates the land your family has farmed and lived on for generations. Can soil play a role in protecting crops and human health? Research in Fukushima, Japan may lend an answer. On March 11, 2011, a magnitude 9.0 earthquake a... 阅读全文>> |
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