A California earthquake early warning system now being tested accurately predicted the ground shaking in San Francisco a few seconds before the city felt the Oct. 30, 2007, magnitude 5.4 quake near San Jose, according to a statewide team of seismologists.

Posted : Wed, Dec 12, 2007

   A genetic study of the salamander family that encompasses two-thirds of the world's salamander species shows that periods of global warming helped the amphibians diversify and expand their range from North America into Europe and Asia.

Posted : Fri, Nov 30, 2007