ScienceDaily: Top Science News |
- Before sounding an alarm, chimps consider information available to their audience
- Are superluminal neutrinos possible? Pions don't want to decay into faster-than-light neutrinos, study finds
- 'Head-first' diversity shown to drive vertebrate evolution
- Hatcheries change salmon genetics after a single generation
| Before sounding an alarm, chimps consider information available to their audience Posted: 29 Dec 2011 10:12 AM PST Wild chimpanzees monitor the information available to other chimpanzees and inform their ignorant group members of danger.  |
| Posted: 23 Dec 2011 08:41 AM PST Physicists have put their finger on a problem with the now-famous OPERA experiment that reported faster-than-light, or superluminal neutrinos. They raise theoretical considerations that would make the creation of superluminal neutrinos impossible.  |
| 'Head-first' diversity shown to drive vertebrate evolution Posted: 21 Dec 2011 06:20 AM PST A new analysis of two adaptive radiations in the fossil record found that these diversifications proceeded "head-first." Head features diversified before body shapes and types. This suggests that feeding-related evolutionary pressures are the initial drivers of diversification.  |
| Hatcheries change salmon genetics after a single generation Posted: 19 Dec 2011 12:25 PM PST The impact of hatcheries on salmon is so profound that in just one generation traits are selected that allow fish to survive and prosper in the hatchery environment, at the cost of their ability to thrive and reproduce in a wild environment. Researchers were surprised by the speed of evolution and natural selection.  |
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