日期：2013-12-13 A molecule containing a noble gas has been discovered in space by a team including astronomers from Cardiff University. The find was made using a Cardiff-led instrument aboard Europe's Herschel Space Observatory. The molecule, argon（氩） hydride（... 阅读全文>>

日期：2013-12-13 A rare, mummified specimen of the duck-billed dinosaur Edmontosauraus regalis described in the Cell Press journal Current Biology on December 12 shows for the first time that those dinosaurs' heads were adorned with a fleshy comb, most similar to th... 阅读全文>>

日期：2013-12-12 A new study contradicts（反驳） the popular theory that students perform better when surrounded by higher-achieving classmates. Michigan State University's Scott Imberman and colleagues found that marginal students in a middle school gifted and tale... 阅读全文>>

日期：2013-12-12 Cuckoos that lay their eggs in the nest of a magpie（喜鹊） so that their chicks can be raised by the latter better hope that their young are not raised together with other magpies. The chances of cuckoo fledglings（雏鸟） raised in mixed broods bei... 阅读全文>>

日期：2013-12-12 Brigham Young University geologists found evidence of some of the largest volcanic eruptions in earth's history right in their own backyard. These supervolcanoes aren't active today, but 30 million years ago more than 5,500 cubic kilometers of magma... 阅读全文>>

日期：2013-12-12 From 2000 to 2010, about 1,900 cyclones churned across the top of the world each year, leaving warm water and air in their wakes -- and melting sea ice in the Arctic Ocean. That's about 40 percent more than previously thought, according to a new ana... 阅读全文>>

日期：2013-12-12 To protect themselves, some animals rapidly change color when their environments change, but chameleons change colors in unusual ways when they interact with other chameleons（变色龙） . Arizona State University researchers have discovered that thes... 阅读全文>>

日期：2013-12-12 A common soil dwelling bacterium appears to possess a sense of touch, researchers have shown. A study, by Dr James Stratford at The University of Nottingham and Dr Simon Park at the University of Surrey, has found that Bacillus mycoides, which has b... 阅读全文>>

日期：2013-12-12 A long-proboscid fly with an extra-long, tongue-like proboscis（鼻子） might seem to take extra-long to feed on a flower, but it actually has an advantage over its counterparts with average sized nectar-sipping mouth parts. It can suck up almost all... 阅读全文>>

日期：2013-12-12 Less than 20 miles from the site where melting ice exposed the 5,000-year-old body of tzi the Iceman, scientists have discovered new and compelling evidence that the Italian Alps are warming at an unprecedented rate. Part of that evidence comes in t... 阅读全文>>

日期：2013-12-12 The degree to which students' exam scores differ owes more to their genes than to their teachers, schools or family environments, according to new research from King's College London published today in PLOS ONE. The study, which took place in the UK... 阅读全文>>

日期：2013-12-12 Air flows mostly in a one-way loop（环，圈） through the lungs of monitor lizards -- a breathing method shared by birds, alligators and presumably（大概，推测） dinosaurs, according to a new University of Utah study. The findings -- published online... 阅读全文>>

日期：2013-12-11 Blood clots play an unexpected role in protecting the body from the deadly effects of bacteria by absorbing bacterial toxins, researchers at the University of California, Davis, have found. The research was published Dec. 2 in the journal PLoS ONE.... 阅读全文>>

日期：2013-12-11 Researchers studying speciation（物种形成） of butterfly orchids on the Azores have been startled to discover that the answer to a long-debated question Do the islands support one species or two species? is actually three species. Hochstetter's Butt... 阅读全文>>

日期：2013-12-11 The region located between the surface of the sun and its atmosphere has been revealed as a more violent place than previously understood, according to images and data from NASA's newest solar observatory, the Interface Region Imaging Spectrograph,... 阅读全文>>

日期：2013-12-11 Millions of people across the world live or depend on deltas for their livelihoods. Formed at the lowest part of a river where its water flow slows and spreads into the sea, deltas are sediment-rich, biodiverse areas, a valuable source of seafood, f... 阅读全文>>

日期：2013-12-11 The home team holds the advantage over visitors -- at least in the plant world. However, a mere handful of genetic adaptations could even the playing field. In the current issue of the Proceedings for the National Academy of Sciences, Michigan State... 阅读全文>>

日期：2013-12-11 Mothers get all the attention. But a study led by McGill researcher Sarah Kimmins suggests that the father's diet before conception may play an equally important role in the health of their offspring. It also raises concerns about the long-term effe... 阅读全文>>

日期：2013-12-10 About 65 million years ago, an asteroid（小行星） or comet crashed into a shallow sea near what is now the Yucatn Peninsula of Mexico. The resulting firestorm and global dust cloud caused the extinction of many land plants and large animals, includi... 阅读全文>>

日期：2013-12-10 A massive ejection of material from the sun initially traveling at over 7 million miles per hour that narrowly missed Earth last year is an event solar scientists hope will open the eyes of policymakers regarding the impacts and mitigation（减轻，缓... 阅读全文>>