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- Tropical plankton invade arctic waters: Researchers see natural cycle, but questions arise on climate change
- Same adaptations evolve across different insects
- Unprecedented Greenland ice sheet surface melt
- Surprising link between ice and atmosphere: GPS can now measure ice melt, change in Greenland over months rather than years
- Regenerating bone tissue using gene therapy: New method may work with other tissues as well
- New recruits in the fight against disease: Anti-bacterial 'killing machine' deciphered
- Superfast evolution in sea stars
- Using virtual reality an arm up to three or even four times the length of a real arm can be felt as if it was the person’s own arm
| Posted: 24 Jul 2012 02:13 PM PDT For the first time, scientists have identified tropical and subtropical species of marine protozoa living in the Arctic Ocean. Apparently, they traveled thousands of miles on Atlantic currents and ended up above Norway with an unusual -- but naturally cyclic -- pulse of warm water, not as a direct result of overall warming climate, say the researchers. On the other hand: Arctic waters are warming rapidly, and such pulses are predicted to grow as global climate change causes shifts in long-distance currents. |
| Same adaptations evolve across different insects Posted: 24 Jul 2012 11:45 AM PDT For years, scientists have questioned whether evolution is predictable, or whether chance events make such predictability unlikely. A new study finds that in the case of insects that developed resistance to a powerful plant toxin, the same adaptations have occurred independently, in separate species in different places and times. |
| Unprecedented Greenland ice sheet surface melt Posted: 24 Jul 2012 10:16 AM PDT For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations. Nearly the entire ice cover of Greenland, from its thin, low-lying coastal edges to its 2-mile-thick center, experienced some degree of melting at its surface, according to measurements from three independent satellites. |
| Posted: 24 Jul 2012 08:50 AM PDT Researchers have found a way to use GPS to measure short-term changes in the rate of ice loss on Greenland -- and reveal a surprising link between the ice and the atmosphere above it. |
| Regenerating bone tissue using gene therapy: New method may work with other tissues as well Posted: 24 Jul 2012 08:49 AM PDT Researchers have developed a new method of repairing bone using synthetic bone graft substitute material, which combined with gene therapy, can mimic real bone tissue and has potential to regenerate bone in patients who have lost large areas of bone from either disease or trauma. |
| New recruits in the fight against disease: Anti-bacterial 'killing machine' deciphered Posted: 24 Jul 2012 07:46 AM PDT Scientists have discovered the structure and operating procedures of a powerful anti-bacterial killing machine that could become an alternative to antibiotics. |
| Superfast evolution in sea stars Posted: 24 Jul 2012 07:46 AM PDT How quickly can new species arise? In as little as 6,000 years, according to a study of Australian sea stars. |
| Posted: 24 Jul 2012 07:43 AM PDT It is believed that our bodies are fixed and unchangeable except through the slow process of growing and ageing. Over recent years there have been research results that defy this common sense view - it seems that the human brain will quickly accept gross changes in the body - incorporating external objects such as a rubber arm into the body representation, and even whole bodies seen in virtual reality. |
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