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Monday, January 14, 2013

ScienceDaily: Top Science News

ScienceDaily: Top Science News


How tadpoles re-grow their tails: Implications for human healing

Posted: 13 Jan 2013 05:11 PM PST

Scientists have made a surprising finding after studying how tadpoles re-grow their tails which could have big implications for research into human healing and regeneration.

What did our ancestors look like? Hair and eye color can be determined for ancient human remains

Posted: 13 Jan 2013 05:11 PM PST

A new method of establishing hair and eye color from modern forensic samples can also be used to identify details from ancient human remains, finds a new study. The HIrisPlex DNA analysis system was able to reconstruct hair and eye color from teeth up to 800 years old, including the Polish General Wladyslaw Sikorski (1881 to 1943) confirming his blue eyes and blond hair.

Scientists reassemble the backbone of earliest four-legged animals using synchrotron X-rays

Posted: 13 Jan 2013 11:49 AM PST

Scientists have been able to reconstruct, for the first time, the intricate three-dimensional structure of the backbone of early tetrapods, the earliest four-legged animals. High-energy X-rays and a new data extraction protocol allowed the researchers to reconstruct the backbones of the 360 million year old fossils in exceptional detail and shed new light on how the first vertebrates moved from water onto land.

Nearby dwarf galaxy and possible protogalaxy found: Optical and radio telescopes lead to reconstruction of intergalactic traffic jam

Posted: 11 Jan 2013 11:38 AM PST

Peering deep into the dim edges of a distorted pinwheel galaxy in the constellation Ursa Major (the Great Bear), astronomers have discovered a faint dwarf galaxy and another possible young dwarf caught before it had a chance to form any stars.

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