日期：2014-01-09 Competition may have a high cost for at least one species of tropical seaweed. Researchers examining the chemical warfare taking place on Fijian coral reefs have found that one species of seaweed increases its production of noxious（有害的） anti-co... 阅读全文>>

日期：2014-01-09 Our health depends in large part upon the ability of specialized enzymes to find and repair the constant barrage（弹幕，阻塞） of DNA damage brought on by ultraviolet light radiation and other sources. In a new study NYU School of Medicine researche... 阅读全文>>

日期：2014-01-09 A team of Harvard scientists and engineers has demonstrated a new type of battery that could fundamentally transform the way electricity is stored on the grid, making power from renewable energy sources such as wind and solar far more economical and... 阅读全文>>

日期：2014-01-09 An international team of researchers has sequenced the genome of the elephant shark, a curious-looking fish with a snout（鼻子） that resembles the end of an elephant's trunk. The elephant shark and its cousins the sharks, rays, skates and chimaeras... 阅读全文>>

日期：2014-01-08 An enormous sunspot, labeled AR1944, slipped into view over the sun's left horizon late on Jan. 1, 2014. The sunspot steadily moved toward the right, along with the rotation of the sun, and now sits almost dead center, as seen in the image above fro... 阅读全文>>

日期：2014-01-08 Galaxies can be remarkably dusty places and supernovas are thought to be a primary source of that dust, especially in the early Universe. Direct evidence of a supernova's dust-making capabilities, however, has been slim and cannot account for the co... 阅读全文>>

日期：2014-01-08 Like salmon（大马哈鱼） in reverse, long-snouted Bandringa sharks migrated downstream from freshwater swamps（沼泽，湿地） to a tropical coastline to spawn 310 million years ago, leaving behind fossil evidence of one of the earliest known shark nurs... 阅读全文>>

日期：2014-01-08 Florida State University researchers have spearheaded（带头，做先锋） a major review of fisheries research that examines the domino effect that occurs when too many fish are harvested from one habitat. The loss of a major species from an ecosystem c... 阅读全文>>

日期：2014-01-08 Dinosaur fossils are exceptionally rare in the Arabian Peninsula. An international team of scientists from Uppsala University, Museum Victoria, Monash University, and the Saudi Geological Survey have now uncovered the first record of dinosaurs from... 阅读全文>>

日期：2014-01-08 After nearly a decade of development, construction and testing, the world's most advanced instrument for directly imaging and analyzing planets orbiting around other stars is pointing skyward and collecting light from distant worlds. Even these earl... 阅读全文>>

日期：2014-01-05 Two INSERM research teams led by Pier Vincenzo Piazza and Giovanni Marsicano (INSERM Unit 862 Neurocentre Magendie in Bordeaux) recently discovered that pregnenolone（孕烯醇酮） , a molecule produced by the brain, acts as a natural defence mechanism... 阅读全文>>

日期：2014-01-05 Scientists have demonstrated that organisms with greater complexity are more likely to evolve in complex environments, according to research published this week in PLOS Computational Biology. The researchers, based at cole Polytechnique Fdrale de La... 阅读全文>>

日期：2014-01-05 The Atlas Mountains defy the standard model for mountain structure in which high topography（地势） must have deep roots for support, according to a new study from Earth scientists at USC. In a new model, the researchers show that the mountains are... 阅读全文>>

日期：2014-01-05 Rare earthquake lights are more likely to occur on or near rift（裂缝） environments, where subvertical（接近垂直的） faults allow stress-induced electrical currents to flow rapidly to the surface, according to a new study published in the Jan./Feb.... 阅读全文>>

日期：2014-01-05 A 100-million-year old piece of amber（琥珀） has been discovered which reveals the oldest evidence of sexual reproduction in a flowering plant -- a cluster of 18 tiny flowers from the Cretaceous Period -- with one of them in the process of making s... 阅读全文>>

日期：2014-01-05 Chests puffing up with pride -- and happiness felt head to toe -- are sensations as real as they are universal. And now we can make an atlas of them. 骄傲感会充满胸膛，幸福感会从头顶灌倒脚底，这种真实的感觉所有人都有体会。而现在我们可以用图谱描绘它... 阅读全文>>

日期：2014-01-05 科学家估计，如果不减少二氧化碳排放，2100年地球平均气温将至少上升4摄氏度，到2200年会上升8摄氏度，无疑是地球灾难性的噩梦。 According to a December 31 news release from the University of New South Wales, scientists estimate that by 2100, global average... 阅读全文>>

日期：2013-12-31 The mechanism by which some bacteria are able to survive antibacterial treatment has been revealed for the first time by Hebrew University of Jerusalem researchers. Their work could pave the way for new ways to control such bacteria. In addition to... 阅读全文>>

日期：2013-12-30 The newly sequenced genome of the Amborella plant addresses Darwin's abominable（讨厌的） mystery -- the question of why flowers suddenly proliferated on Earth millions of years ago. The genome sequence sheds new light on a major event in the histor... 阅读全文>>

日期：2013-12-30 Boston College chemists have developed a new chemical synthesis methodology（方法学） that converts chemicals known as alpha-olefins into new organic compounds. By combining a pair of catalytic reactions in sequence, the researchers converted inexpe... 阅读全文>>