日期：2012-08-07 Flooding caused by torrential rain has paralysed parts of the Philippine capital, forcing tens of thousands to flee their homes and closing schools, offices and the stock exchange. 暴雨引发的洪灾使菲律宾首都部分地区陷入瘫痪状态，成千上万人被迫逃离家... 阅读全文>>

日期：2012-08-07 Two new studies offer insight into sex chromosome evolution by focusing on papaya（木瓜） , a multimillion dollar crop plant with a sexual problem (as far as growers are concerned) and a complicated past. The findings are described in two papers in... 阅读全文>>

日期：2012-08-07 A yucca（丝兰） plant might make your office desk look nice, but with a new technology developed at Disney Research, Pittsburgh, that little shrub could possibly control your computer. And the jade plant nearby? Put your hand close to it and your iP... 阅读全文>>

日期：2012-08-07 Tree cover in the nation's Lower 48 states covers 659 million acres, more than one-third of the nation, according to a U.S. Forest Service study of national tree cover and impervious surfaces. New Hampshire leads the nation in percent tree cover (89... 阅读全文>>

日期：2012-08-07 A new genetic analysis focusing on Jews from North Africa has provided an overall genetic map of the Jewish Diasporas. The findings support the historical record of Middle Eastern Jews settling in North Africa during Classical Antiquity, proselytizi... 阅读全文>>

日期：2012-08-06 The beautiful, endemic（地方性的） and endangered cycad（苏铁属植物） , Cycas micronesica was once a dominant forest tree on the island of Guam, but recent plant mortality predicts extirpation（消灭，根除） from Guam habitats by 2019. This dire pred... 阅读全文>>

日期：2012-08-06 One of the most invasive species on the planet is able to source food from the land as well as its usual food sources in the water, research from Queen Mary, University of London has found. Scientists analyzed the of red swamp（沼泽，湿地） crayfish... 阅读全文>>

日期：2012-08-06 African elephants are known to be great communicators that converse with extremely low-pitched vocalizations, known as infrasounds, over a distance of miles. These infrasounds occupy a very low frequency range -- fewer than 20 Hertz, or cycles, per... 阅读全文>>

日期：2012-08-06 Plants produce toxins to defend themselves against potential enemies, from herbivorous（食草的） pests to diseases. Oilseed rape plants produce glucosinolates to serve this purpose. However, due to the content of glucosinolates, farmers can only use... 阅读全文>>

日期：2012-08-06 If we look at the sky on a perfectly fine summer's day we shall find that the blue colour is the most pure and intense overhead, and when looking high up in a direction opposite to the sun. Near the horizon it is always less bright, while in the reg... 阅读全文>>

日期：2012-08-03 Our planet's changing climate is devastating communities in Africa through droughts, floods and myriad（无数的） other disasters. Using detailed regional climate models and geographic information systems, researchers with the Climate Change and Afri... 阅读全文>>

日期：2012-08-03 A chemical sensing system developed by engineers at the University of Connecticut is believed to be the first of its kind capable of detecting vapors（蒸汽） from buried landmines and other explosive devices with the naked eye rather than advanced s... 阅读全文>>

日期：2012-08-03 Widespread skin cancer has been identified for the first time in wild marine fish populations, new research has shown. A collaborative study between Newcastle University and the Australian Institute of Marine Science published August 2 in the academ... 阅读全文>>

日期：2012-08-03 Scientists are beginning to understand one of life's enduring mysteries -- why women live, on average, longer than men. Published August 2 in Current Biology, research led by Monash University, describes how mutations to the DNA of the mitochondria... 阅读全文>>

日期：2012-08-03 When ordering seafood, the options are many and so are some of the things you might consider in what you order. Is your fish healthy? Is it safe? Is it endangered? While there are many services and rankings offered to help you decide -- there's even... 阅读全文>>

日期：2012-08-03 A postdoctoral researcher at the University of Rhode Island has observed a never-before-seen defensive strategy used by a small species of deep-sea squid in which the animal counter-attacks a predator and then leaves the tips of its arms attached to... 阅读全文>>

日期：2012-08-03 When caught in pouring rain without an umbrella, most people pick up their pace. But an old tale advises that a person who runs in the rain gets wetter than one who walks. It sounds reasonable that when someone runs up and down, the body is exposed... 阅读全文>>

日期：2012-08-02 When it comes to intelligence, what factors distinguish the brains of exceptionally smart humans from those of average humans? As science has long suspected, overall brain size matters somewhat, accounting for about 6.7 percent of individual variati... 阅读全文>>

日期：2012-08-02 While drinking coffee with caffeine each day does not appear to reduce sleepiness among people with Parkinson's disease, it may have a benefit in controlling movement, according to new research published in the August 1, 2012, online issue of Neurol... 阅读全文>>

日期：2012-08-02 Given the predicted rise in global temperatures in the coming decades, climate scientists are particularly interested in warm periods that occurred in the geological past. Knowledge of past episodes of global warmth can be used to better understand... 阅读全文>>