ScienceDaily: Top Environment News |
- Need for speed: Molecular ticket determines RNA’s destination and speed inside egg cell
- T. rex's killer smile revealed
- 'Gravity is climate': 10 years of climate research satellites GRACE
- Invasive plants: Climate is a determining factor
| Need for speed: Molecular ticket determines RNA’s destination and speed inside egg cell Posted: 18 Mar 2012 11:40 AM PDT Like any law-abiding train passenger, a molecule called oskar RNA carries a stamped ticket detailing its destination and form of transport, scientists have found. They show that for this molecule, moving in the right direction isn't enough: speed is of the essence. Their study also provides clues as to how a single molecule could receive tickets for different destinations, depending on what type of cell it is in.  |
| T. rex's killer smile revealed Posted: 18 Mar 2012 07:04 AM PDT One of the most prominent features of life-size models of Tyrannosaurus rex is its fearsome array of flesh-ripping, bone-crushing teeth. New research shows that the T. rex's front teeth gripped and pulled, while the teeth along the side of the jaw punctured and tore flesh.  |
| 'Gravity is climate': 10 years of climate research satellites GRACE Posted: 16 Mar 2012 04:53 PM PDT For the first time, the melting of glaciers in Greenland can now be measured with high accuracy from space. A new sharp image also renders the spatial distribution of the glacial melt more precisely.  |
| Invasive plants: Climate is a determining factor Posted: 16 Mar 2012 06:38 AM PDT Most invasive plants colonize regions with climates similar to the one from their native areas. With the analysis of fifty invasive plant species introduced worldwide, this study confirms that it is possible, for the most part, to predict the regions of potential invasibility based on the principle of climatic niche conservation.  |
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