《环球科学》(“科学美国人”中文版)【唯一官方网站】移动版

  • Coyote Size Forces Smartness

    日期:2014-10-24 16:46:48 点击:226 好评:0

    Topping out at about 20 kilograms, a coyote has to be able to hunt both smaller and bigger prey, and avoid being prey itself, a combination that selects for intelligence. Steve Mirsky reports...

  • Fecal Transplanters Fish Out Key Ingredient

    日期:2014-10-24 16:42:49 点击:177 好评:0

    The bacterium Clostridium scindens, a member of the gut’s microbiome, appears to ward off the hospital-acquired infection C. difficile. Christopher Intagliata reports...

  • Reindeer Spit Smacks Down Plant Toxins

    日期:2014-10-17 15:45:21 点击:218 好评:0

    Compounds in reindeer and moose saliva interfere with the production of toxins in plants that ordinarily stop animals from dining on the vegetation. Karen Hopkin reports...

  • Track Cosmic Rays With Smartphone App

    日期:2014-10-17 15:34:16 点击:249 好评:0

    Take part in a citizen-science project by helping researchers track high-energy cosmic rays via a network of smartphone users. Clara Moskowitz reports....

  • Lemur Latrine Trees Serve As Community Bulletin Boards

    日期:2014-10-17 15:23:01 点击:223 好评:0

    Primatologists spent almost 1,100 hours watching lemurs do their business on their designated tree and concluded that urine and glandular secretions serve as posted messages. Steve Mirsky reports....

  • Star-Forming Clouds May Spit Out Life’s Building Blocks

    日期:2014-10-15 09:29:44 点击:148 好评:0

    Astronomers have discovered one of the largest and most complex organic molecules yet in a gaseous star-forming region of interstellar space. Clara Moskowitz reports...

  • Kids Who Exercise Don’t Sweat Tests

    日期:2014-10-15 09:28:44 点击:155 好评:0

    Physically active children are healthier and score better on intellectual tests than their sedentary peers. Dina Fine Maron reports...

  • Less Well-Off Donate Bigger Income Percentage

    日期:2014-10-15 09:26:13 点击:141 好评:0

    Wealthier people on average gave a lower percentage to charity in 2012 than they did in 2006, while the less affluent increased their giving. Cynthia Graber reports...

  • Jet Pack Keeps You Grounded, but Faster

    日期:2014-10-11 15:27:50 点击:346 好评:0

    Mini-jet backpack for runners could help military personnel and others get home faster. Larry Greenemeier reports...

  • App IDs Other Battery-Eater Apps

    日期:2014-10-11 15:13:56 点击:171 好评:0

    More than a million volunteer users of the smarthphone app Carat have helped researchers identify those apps that really suck battery power in both the Android operating system and Apple's iOS. Larry Greenemeier reports...