Long before animals with limbs (tetrapods) came onto the scene about 365 million years ago, fish already possessed the genes associated with helping to grow hands and feet (autopods) report University of Chicago researchers ...
May 23, 2007
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Researchers developing a system that uses mathematical models and sensors to locate passengers releasing hazardous materials or pathogens inside airline cabins have shown that the technique can track a substance to an area ...
Engineering
May 23, 2007
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When fire, clearcutting, lava or receding glaciers create empty habitat, species arrive to form a new ecological community. Adverse conditions -- such as isolation of the new community or an unfavorable climate -- may hinder ...
May 23, 2007
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In the steamy tropics, even the birds find the pace of life a bit more relaxed, research shows. Tropical birds expend less energy at rest than do birds living in more northern climates, according to a study published online ...
May 23, 2007
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Using NASA's Swift satellite, astronomers have discovered that energetic flares seen after gamma-ray bursts (GRBs) are not just hiccups, they appear to be a continuation of the burst itself.
Astronomy
May 23, 2007
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Excessive levels of fecal bacteria were to blame for almost 60 percent of Nebraska streams deemed impaired by federal and state environmental laws in 2004. In order to develop effective pollution-control strategies, it is ...
Environment
May 23, 2007
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Data from Venus Express, which has been revealing new and crucial details about our closest planetary neighbour, will now be augmented by synoptic data from a coordinated ground-based observation campaign.
Space Exploration
May 23, 2007
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Physicists are developing new electronics for identifying subatomic particles in high-energy accelerators that may also enable radiologists to detect cancer at an earlier, more curable stage.
General Physics
May 23, 2007
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Jets of matter have been discovered around a very low mass 'failed star', mimicking a process seen in young stars. This suggests that these 'brown dwarfs' form in a similar manner to normal stars but also that outflows are ...
Astronomy
May 23, 2007
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Whitefish, Arctic char, threespine stickleback and some sunfishes display quite discrete groups living in the same lakes but utilizing different food resources in order to survive. The phenomenon is called "resource polymorphism." ...
May 23, 2007
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