ScienceDaily: Top Science News |
- New study sheds light on how and when vision evolved
- Mass extinction study provides lessons for modern world
- Huge deposit of Jurassic turtle remains found in China
- Super-massive black hole inflates giant bubble
- 'Curiosity' on Mars sits on rocks similar to those found in marshes in Mexico
| New study sheds light on how and when vision evolved Posted: 29 Oct 2012 12:43 PM PDT Opsins, the light-sensitive proteins key to vision, may have evolved earlier and undergone fewer genetic changes than previously believed, according to a new study.  |
| Mass extinction study provides lessons for modern world Posted: 29 Oct 2012 12:42 PM PDT The Cretaceous Period of Earth history ended with a mass extinction that wiped out numerous species, most famously the dinosaurs. A new study now finds that the structure of North American ecosystems made the extinction worse than it might have been.  |
| Huge deposit of Jurassic turtle remains found in China Posted: 29 Oct 2012 08:12 AM PDT "Bones upon bones, we couldn't believe our eyes," says one paleontologist. He was describing the spectacular find of some 1800 fossilized mesa chelonia turtles from the Jurassic era in China's northwest province of Xinjiang.  |
| Super-massive black hole inflates giant bubble Posted: 29 Oct 2012 05:18 AM PDT Like symbiotic species, a galaxy and its central black hole lead intimately connected lives. The details of this relationship still pose many puzzles for astronomers.  |
| 'Curiosity' on Mars sits on rocks similar to those found in marshes in Mexico Posted: 29 Oct 2012 05:18 AM PDT Millions of years ago fire and water forged the gypsum rocks locked in at Cuatro Ciénegas, a Mexican valley similar to the Martian crater where NASA's Rover Curiosity roams. A team of researchers have now analysed the bacterial communities that have survived in these inhospitable springs since the beginning of life on Earth "Cuatro Ciénegas is extraordinarily similar to Mars. As well as the Gale crater where Curiosity is currently located on its exploration of the red planet, this landscape is the home to gypsum formed by fire beneath the seabed," as explained by an evolutionary ecologist.  |
| You are subscribed to email updates from ScienceDaily: Top Science News To stop receiving these emails, you may unsubscribe now. | Email delivery powered by Google |
| Google Inc., 20 West Kinzie, Chicago IL USA 60610 | |
No comments:
Post a Comment