25/01/2010

Environmental Change Impacts Oklahoma Rivers

(PhysOrg.com) -- Biodiversity in freshwater systems is impacted as much or more by environmental change than tropical rain forests, according to University of Oklahoma Professor Caryn Vaughn, who serves as director of the ...

Lopsided fish show that symmetry is only skin deep

Putting function before form, members of the Perissodinus genus of fish have developed a hugely lopsided jaw that provides a distinct feeding advantage. Research published in the open access journal BMC Biology describes ...

Ozone hole healing could cause further climate warming

The hole in the ozone layer is now steadily closing, but its repair could actually increase warming in the southern hemisphere, according to scientists at the University of Leeds.

Is the Mona Lisa a Self-Portrait?

(PhysOrg.com) -- Italian scientists hope to dig up the remains of Leonardo da Vinci in order to determine if his most famous painting, the Mona Lisa, is a disguised self-portrait.

Better food makes high-latitude animals bigger

(PhysOrg.com) -- New research suggests that animals living at high latitudes grow better than their counterparts closer to the equator because higher-latitude vegetation is more nutritious. The study, published in the February ...

Going For Exawatts: Building the most powerful laser in the world

Producing a laser with a power of a terawatt -- equal to one trillion watts -- used to be impressive, but now the forefront of optical research power is measured in 1 quadrillion-watt units known as petawatts. But even that ...

Defending Planet Earth from Asteroid and Comet Strikes (w/ Video)

University of Maryland Astronomy Professor Michael A'Hearn, leader of NASA's Deep Impact and EPOXI comet missions is vice-chair of a new report from the National Academy of Sciences on detecting and protecting Earth from ...

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