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London 2012 Olympics: Athletes ‘hand golden ticket to terrorists’ by posting security pass pictures on Twitter

Several competitors, including British rower Zac Purchase (pictured) have caused security headaches by tweeting high resolution images of their Locog accreditation, just days before Friday's opening ceremony.

Polar bear evolution tracked climate change, new DNA study suggests

An analysis of newly sequenced polar bear genomes is providing important clues about the species' evolution, suggesting that climate change and genetic exchange with brown bears helped create the polar bear as we know it today.

College endowments lose top grades in sustainable investments

Once leaders in sustainable investment and shareowner advocacy, college and university endowments now lag behind many mainstream institutions in the uptake of environmental, social and corporate governance investment criteria.

From MIT to Stanford, college classes where a startup is the final exam

College campuses are becoming incubators for startups, offering encouragement in the form of classes to nurture young dreamers. This explains the influx of 21-year-olds making millions of dollars in investment before they can legally pop a beer.