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The tiny organism has an internal clock that triggers it to swim vigorously every 12.4 hours, coinciding with the changing tide — even when it's removed from its habitat.

During a Senate Intelligence Committee hearing, NSA Director Gen. Keith Alexander would not say.

Tea Party backed senators Ted Cruz of Texas and Mike Lee of Utah got into a rhetorical fight with fellow Republican Sen. Bob Corker of Tennessee, who accused them of grandstanding.

People tend to throw whole pieces of paper in the recycling bin — and fragments of paper in the trash. Research on the trend finds that we may be acting on unconscious prejudice about what is worth recycling.

Leading Texas politicians have resisted the federal health care law. But in Houston, community groups and public health agencies are trying to educate the city's 800,000 uninsured residents about new coverage options.

Los Angeles Unified School District started issuing iPads to its students this school year, as part of a $30 million deal with Apple. But less than a week after getting their iPads, hundreds of students had found a way to bypass software blocks meant to limit what websites the students can use.

Microsoft's co-founder wishes Windows PCs had been given one start-up key instead of the famous three-key combination. But fans are both nostalgic about what was required and say it helped protect their PCs from some problems.

A political journalist tells congressional Republicans to pull the trigger on a government shutdown and debt default... Speaker Boehner's attempt to placate his House GOP caucus' hardliners fails ... Someone goes cute and furry to sell Obamacare.

As they resume their investigation into allegations about the use of chemical weapons in Syria, U.N. experts are looking into at least three incidents for which President Bashar Assad's aides have said the rebels were responsible. The inspectors are not expected to assign blame.

By 2015, Facebook and other social networking sites will have to allow California minors to delete embarrassing posts. But the law is riddled with loopholes, and teens won't be protected any more than they already are.