日期：2013-03-01 A South Dakota School of Mines Technology assistant professor and his team have discovered a new species of herbivorous（食草的） dinosaur and today published the first fossil evidence of prehistoric crocodyliforms feeding on small dinosaurs. Resear... 阅读全文>>

日期：2013-03-01 A group of international ecological scientists led by the University of Adelaide have rejected a doomsday-like scenario of sudden, irreversible change to Earth's ecology. In a paper published February 28 in the journal Trends in Ecology and Evolutio... 阅读全文>>

日期：2013-03-01 Researchers studying data from 600 fields in 20 countries have found that managed honey bees are not as successful at pollinating crops as wild insects, primarily wild bees, suggesting the continuing loss of wild insects in many agricultural landsca... 阅读全文>>

日期：2013-02-28 Obesity rates across Canada are reaching alarming levels and continue to climb, according to a new University of British Columbia study. Published today in the Canadian Journal of Public Health, the study provides the first comprehensive look at adu... 阅读全文>>

日期：2013-02-28 Older people who have low expectations for a satisfying future may be more likely to live longer, healthier lives than those who see brighter days ahead, according to new research published by the American Psychological Association. Our findings rev... 阅读全文>>

日期：2013-02-28 A new genetic analysis of human lice（虱子） from across the world sheds light on the global spread of these parasites, their potential for disease transmission and insecticide resistance. The results are published February 27 in the open access jou... 阅读全文>>

日期：2013-02-28 Bearded capuchin monkeys deliberately place palm nuts in a stable position on a surface before trying to crack them open, revealing their capacity to use tactile information to improve tool use. The results are published February 27 in the open acce... 阅读全文>>

日期：2013-02-28 Same-sex couples who live together have worse health than married opposite-sex couples and similar health as opposite-sex couples who are living together (after adjusting for socioeconomic differences), according to a new study from researchers at R... 阅读全文>>

日期：2013-02-27 The idea that boys are better at math and in competitions has persisted for a long time, and now we know why: Nobody bothered to schedule the rematch. Most school math contests are one-shot events where girls underperform relative to their male clas... 阅读全文>>

日期：2013-02-27 Scientists have used sugar-coated scaffolding to move a step closer to the routine use of stem cells in the clinic and unlock their huge potential to cure diseases from Alzheimer's to diabetes. Stem cells have the unique ability to turn into any typ... 阅读全文>>

日期：2013-02-27 In collaboration with the Royal Botanic Gardens of Madrid and the Slovenian Forestry Institute, researchers in the Basque Country have documented two new species of Hydnum, commonly known as ox tongue mushrooms, as part of their study published in t... 阅读全文>>

日期：2013-02-27 The overuse of antibiotics has created strains of bacteria resistant to medication, making the diseases they cause difficult to treat, or even deadly. But now a research team at the University of Rochester has identified a weakness in at least one s... 阅读全文>>

日期：2013-02-27 A new study published in Biology Letters found that ship noise affects crab metabolism（新陈代谢） , with largest crabs faring worst, and found little evidence that crabs acclimatise（适应，习惯） to noise over time. The team from the Universities o... 阅读全文>>

日期：2013-02-25 Evidence from Siberian caves suggests that a global temperature rise of 1.5 degrees Celsius could see permanently frozen ground thaw（融解） over a large area of Siberia, threatening release of carbon from soils, and damage to natural and human envi... 阅读全文>>

日期：2013-02-25 A study, published by the Zoological Society of London (ZSL), shows that just like humans love getting stuck into a crossword, chimpanzees get the same feeling of satisfaction from completing tricky puzzles. Scientists set up a challenge for six chi... 阅读全文>>

日期：2013-02-25 Flowers' methods of communicating are at least as sophisticated as any devised by an advertising agency, according to a new study, published February 21 in Science Express by researchers from the University of Bristol. However, for any advertisement... 阅读全文>>

日期：2013-02-24 The sounds uttered by birds offer in several respects the nearest analogy（类似） to language, Charles Darwin wrote in The Descent of Man (1871), while contemplating how humans learned to speak. Language, he speculated, might have had its origins in... 阅读全文>>

日期：2013-02-24 By analyzing Mercury's rocky surface, scientists have been able to partially reconstruct the planet's history over billions of years. Now, drawing upon the chemical composition of rock features on the planet's surface, scientists at MIT have propose... 阅读全文>>

日期：2013-02-24 Sometimes the best discoveries come by accident. A team of researchers at Washington University in St. Louis, headed by Srikanth Singamaneni, PhD, assistant professor of mechanical engineering materials science, unexpectedly found the mechanism by w... 阅读全文>>

日期：2013-02-24 A new climate model predicts an increase in snowfall for Earth's polar regions and highest altitudes, but an overall drop in snowfall for the globe, as carbon dioxide levels rise over the next century. The decline in snowfall could spell trouble for... 阅读全文>>