日期：2013-06-16 Scientists at the University of Liverpool have shed new light on how diving mammals, such as the sperm whale, have evolved to survive for long periods underwater without breathing. The team identified a distinctive molecular signature of the oxygen-... 阅读全文>>

日期：2013-06-16 A new study shows that small websites, in terms of daily user flux（流量，变迁） based on number of clicks, have a disproportionally high impact when it comes to traffic generation and influence compared to larger websites. These findings, about to... 阅读全文>>

日期：2013-06-16 They lie dormant（冬眠，休止） for years, but at the first sign of favorable conditions they awaken. This sounds like the tagline（标语） for a science fiction movie, but it describes the amazing life-cycles of microbial organisms that form the biol... 阅读全文>>

日期：2013-06-16 A drug approved in Europe to treat osteoporosis（骨质疏松症） has now been shown to stop the growth of breast cancer cells, even in cancers that have become resistant to current targeted therapies, according to a Duke Cancer Institute study. The fin... 阅读全文>>

日期：2013-06-16 As spring warms up Wisconsin, humans aren't the only ones tending their gardens. At the University of Wisconsin-Madison Department of Bacteriology, colonies of leaf-cutter ants cultivate thriving communities of fungi and bacteria using freshly cut p... 阅读全文>>

日期：2013-06-16 The ocean the Titanic sailed through just over 100 years ago was very different from the one we swim in today. Global warming is increasing ocean temperatures and harming marine food webs. Nitrogen run-off from fertilizers is causing coastal dead zo... 阅读全文>>

日期：2013-06-16 Many students have difficulty understanding and explaining how evolution operates. In search of better ways to teach the subject, researchers at Michigan State University developed complete evolutionary case studies spanning the gamut（整个范围） fr... 阅读全文>>

日期：2013-06-08 A gene expression study of grapevine（葡萄树） berries grown in different Italian vineyards has highlighted genes that help buffer（缓冲） the plants against environmental change and may explain the different quality performances of grapevine when g... 阅读全文>>

日期：2013-06-08 Researchers from the Seoul National University found that wild birds appear to think faster when humans, and possibly predators in general, are directly looking at them. We started this study from our experience says Dr. Sang-im Lee, the leader of m... 阅读全文>>

日期：2013-06-08 Over the years ecologists have shown how biological diversity benefits the health of small, natural communities. New analysis by ecologists at UC Santa Cruz demonstrates that even higher levels of biological diversity are necessary to maintain ecosy... 阅读全文>>

日期：2013-06-08 By activating a brain circuit that controls compulsive behavior, MIT neuroscientists have shown that they can block a compulsive behavior in mice -- a result that could help researchers develop new treatments for diseases such as obsessive-compulsiv... 阅读全文>>

日期：2013-06-08 How do immune cells manage to sort through vast numbers of similar-looking proteins within the body to detect foreign invaders and fight infections? For immune cells, singling out foreign proteins is like looking for a needle in a haystack（干草堆）... 阅读全文>>

日期：2013-06-07 Surprisingly large amounts of discarded trash end up in the ocean. Plastic bags, aluminum cans, and fishing debris not only clutter our beaches, but accumulate in open-ocean areas such as the Great Pacific Garbage Patch. Now, a paper by researchers... 阅读全文>>

日期：2013-06-07 Rutgers scientists have described for the first time the biological process of how corals create their skeletons -- destined to become limestones（石灰岩） -- which form massive and ecologically vital coral reefs in the world's oceans. In a publicat... 阅读全文>>

日期：2013-06-07 Bioengineers at the University of California, San Diego have developed a computational model of 1,366 genes in E. coli that includes 3D protein structures and has enabled them to compute the temperature sensitivity of the bacterium's proteins. The s... 阅读全文>>

日期：2013-06-07 Decades of drought in central Africa reached their worst point in the 1980s, causing Lake Chad, a shallow lake used to water crops in neighboring countries, to almost dry out completely. The shrinking lake and prolonged drought was initially blamed... 阅读全文>>

日期：2013-06-07 Spindle-shaped inclusions in three-billion-year-old rocks are microfossils of plankton（浮游生物） that probably inhabited the oceans around the globe during that time, according to an international team of researchers. It is surprising to have larg... 阅读全文>>

日期：2013-06-06 Medieval chronicles have given an international group of researchers a glimpse into the past to assess how historical volcanic eruptions affected the weather in Ireland up to 1500 years ago. By critically assessing over 40,000 written entries in the... 阅读全文>>

日期：2013-06-06 The researchers have been tracking the evolution of Drosophila subobscura, a small fly that is very common all over Europe, since 1976. They are focusing on a specific type of genomic variability known as chromosomal inversion polymorphism（倒位多态... 阅读全文>>

日期：2013-06-06 A new species of tiny blenniiform fish has been discovered in the biodiversity rich waters of the southern Caribbean.Haptoclinus dropiis only around 2cm in length with a beautiful color pattern that includes iridescence（彩虹色） on the fins. The pr... 阅读全文>>