14-01-18 When one encounters a group of fruit flies invading their kitchen, it probably appears as if the whole group is vying（争夺） for a sweet treat. But a closer look would likely reveal the male flies in the group are putting up more of a fight, partic...

14-01-18 Thousands of chemicals serving a variety of human needs flood into sewage treatment plants once their use life has ended. Many belong to a class of chemicals known as CECs (for chemicals of emerging concern), which may pose risks to both human and e...

14-01-18 Humans and some of our hominid（人类及其祖先的） ancestors such as Homo erectus have been walking for more than a million years, and researchers are close to figuring out how we do it. It's never been completely clear how human beings accomplish the...

14-01-14 Whales, bats, and even praying mantises use ultrasound as a sensory guidance system -- and now a new study has found that ultrasound can modulate（调节） brain activity to heighten sensory perception in humans. Virginia Tech Carilion Research Instit...

13-12-05 Climate change has increased concern over possible large and rapid changes in the physical climate system, which includes Earth's atmosphere, land surfaces, and oceans. Some of these changes could occur within a few decades or even years, leaving li...

13-12-01 A number of human foods are dangerous to pets. Many of these foods may seem tasty to our pets but can prove deadly if eaten. It can be very tempting to offer pets food from the table, but pets should not be given human food unless recommended by you...

13-11-21 The genome sequence of a 24,000-year-old Siberian individual has provided a key piece of the puzzle in the quest for Native American origins. The ancient Siberian demonstrates genomic signatures that are basal to present-day western Eurasians and cl...

13-11-13 The rain in Spain may lie mainly on the plain, but the location and intensity of that rain is changing not only in Spain but around the globe. A new study by Lawrence Livermore National Laboratory scientists shows that observed changes in global (oc...

13-11-07 Costa Rica reveals astonishing biodiversity of braconid（茧蜂） wasps, with 277 new species of the tribe Heterospilini described in the latest special issue of the open access journal ZooKeys. This is the second part of an extensive two-part study o...

13-11-06 It's well established that humans maintain a symbiotic relationship with the trillions of beneficial microbes that colonize their bodies. These organisms, collectively called the microbiota, help digest food, maintain the immune system, fend off pat...