ScienceDaily: Top Environment News |
- Bacteria recycle broken DNA: Modern bacteria can add DNA from creatures long-dead to its own
- New approach to identify possible ecological effects of releasing genetically engineered insects
- 'Respiratory disorder' in the ocean
- Canadians' foreign policy priority: Climate change
- Ancient, modern DNA tell story of first humans in the Americas
- Amber provides new insights into the evolution of Earth's atmosphere: Low oxygen levels for dinosaurs
- More than 600 ancient seals and amulets found in Turkey
- Together alone: Sportive lemurs stay individualists in relationships
- Untreated HIV carriers transmit resistant viruses
- Bitter melon extract may have potential to fight head, neck cancer
| Bacteria recycle broken DNA: Modern bacteria can add DNA from creatures long-dead to its own Posted: 18 Nov 2013 12:58 PM PST From a bacteria's perspective the environment is one big DNA waste yard. Researchers have now shown that bacteria can take up small as well as large pieces of old DNA from this scrapheap and include it in their own genome. This discovery may have major consequences – both in connection with resistance to antibiotics in hospitals and in our perception of the evolution of life itself.  |
| New approach to identify possible ecological effects of releasing genetically engineered insects Posted: 18 Nov 2013 10:30 AM PST Researchers have developed a new approach for identifying potential environmental effects of deliberate releases of genetically engineered insects.  |
| 'Respiratory disorder' in the ocean Posted: 18 Nov 2013 08:19 AM PST For more than four months, ocean scientists investigated the oxygen-poor upwelling regions in the tropical Pacific off Peru. First results show how eddies in the ocean influence the oxygen and nutrient distribution in the oxygen-poor regions.  |
| Canadians' foreign policy priority: Climate change Posted: 18 Nov 2013 06:14 AM PST Canadians do not share the federal government's opinion when it comes to the fight against climate change. Canada should work more closely with other countries to address this issue, according to 63% of the participants in a new survey.  |
| Ancient, modern DNA tell story of first humans in the Americas Posted: 18 Nov 2013 05:12 AM PST An anthropology professor has looked to DNA to tell the story of how ancient humans first came to the Americas and what happened to them once they were here.  |
| Posted: 18 Nov 2013 05:10 AM PST Scientists have reconstructed the composition of the Earth's atmosphere of the last 220 million years by analyzing modern and fossil plant resins. The results suggest that atmospheric oxygen was considerably lower in the Earth's geological past than previously assumed. This new study questions some of the current theories about the evolution of climate and life, including the causes for the gigantism of dinosaurs.  |
| More than 600 ancient seals and amulets found in Turkey Posted: 18 Nov 2013 05:10 AM PST Archaeologists have made an unusually large find in Turkey which has provided surprisingly vivid insights into the piety of the time. They discovered more than 600 stamp seals and cylinder seals at the sacred site of the storm and weather god Jupiter Dolichenus.  |
| Together alone: Sportive lemurs stay individualists in relationships Posted: 18 Nov 2013 05:09 AM PST During a one-year field study in Southern Madagascar scientists discovered that nocturnal white-footed sportive lemurs share a common territory with a pair partner of the opposite sex. This result clarified conflicting earlier reports on the social organization of this species.  |
| Untreated HIV carriers transmit resistant viruses Posted: 18 Nov 2013 05:09 AM PST Human-Immunodeficiency Viruses that resist AIDS medicines are primarily transmitted by people who are not actually undergoing treatment. In order to prevent a spread of the resistant viruses increased efforts in prevention and early diagnosis of new infections are needed, as concluded by the Swiss HIV Cohort Study.  |
| Bitter melon extract may have potential to fight head, neck cancer Posted: 18 Nov 2013 05:08 AM PST Preliminary findings show bitter melon reduces cancer cell growth in animal model.  |
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