ScienceDaily: Top Science News |
- Paleo-ocean chemistry: New data challenge old views about evolution of early life
- Chinese medicine yields secrets: Atomic mechanism of two-headed molecule derived from Chang Shan, a traditional chinese herb
- Study shows rapid warming on the West Antarctic ice sheet
| Paleo-ocean chemistry: New data challenge old views about evolution of early life Posted: 23 Dec 2012 12:27 PM PST A research team has tested a hypothesis in paleo-ocean chemistry, and proved it false. Many researchers attribute the delayed diversification and proliferation of eukaryotes to very low levels of zinc in seawater. But after analyzing marine black shale samples from North America, Africa, Australia, Asia and Europe, ranging in age from 2.7 billion years to 580 million years old, the researchers found that the shales reflect high seawater zinc availability.  |
| Posted: 23 Dec 2012 12:24 PM PST The mysterious inner workings of Chang Shan -- a Chinese herbal medicine used for thousands of years to treat fevers associated with malaria -- have been uncovered thanks to a high-resolution structure solved by scientists.  |
| Study shows rapid warming on the West Antarctic ice sheet Posted: 23 Dec 2012 12:24 PM PST In a discovery that raises further concerns about the future contribution of Antarctica to sea level rise, a new study finds that the western part of the ice sheet is experiencing nearly twice as much warming as previously thought.  |
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