ScienceDaily: Top Science News |
- Magpies make decisions faster when humans look at them
- Stranded orcas hold critical clues for scientists
- Whispering light hears liquids talk
- Pollution in Northern Hemisphere helped cause 1980s African drought
- 2011 Draconid meteor shower deposited a ton of meteoritic material on Earth
- How birds lost their penises
- Unusual antibodies in cows suggest new ways to make medicines for people
| Magpies make decisions faster when humans look at them Posted: 07 Jun 2013 10:10 AM PDT Researchers have found that wild birds appear to "think faster" when humans, and possibly predators in general, are directly looking at them. |
| Stranded orcas hold critical clues for scientists Posted: 07 Jun 2013 10:10 AM PDT The development of a standardized killer-whale necropsy system has boosted the complete data from killer-whale strandings from two percent to about 33 percent, according to a recent study. |
| Whispering light hears liquids talk Posted: 07 Jun 2013 05:53 AM PDT Researchers have developed optomechanical sensors in which extremely minute forces exerted by light are used to generate and control high-frequency mechanical vibrations of microscale and nanoscale devices that will help unlock vibrational secrets of chemical and biological samples at the nanoscale. |
| Pollution in Northern Hemisphere helped cause 1980s African drought Posted: 06 Jun 2013 12:43 PM PDT Air pollution in the Northern Hemisphere in the mid-20th century cooled the upper half of the planet and pushed rain bands south, contributing to the prolonged and worsening drought in Africa's Sahel region. Clean air legislation in the 1980s reversed the trend and the drought lessened. |
| 2011 Draconid meteor shower deposited a ton of meteoritic material on Earth Posted: 06 Jun 2013 11:10 AM PDT About a ton of material coming from comet 21P/Giacobini-Zinner was deposited in the Earth's atmosphere on October 8th and 9th, 2011 during one of the most intense showers of shooting starts in the last decade, which registered an activity of more than 400 meteors per hour. |
| Posted: 06 Jun 2013 11:06 AM PDT In animals that reproduce by internal fertilization, as humans do, you'd think a penis would be an organ you couldn't really do without, evolutionarily speaking. Surprisingly, though, most birds do exactly that, and now researchers have figured out where, developmentally speaking, birds' penises have gone. |
| Unusual antibodies in cows suggest new ways to make medicines for people Posted: 06 Jun 2013 11:05 AM PDT Humans have been raising cows for their meat, hides and milk for millennia. Now it appears that the cow immune system also has something to offer. A new study focusing on an extraordinary family of cow antibodies points to new ways to make human medicines. |
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