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Proceedings of the National Academy of Sciences

A view of Facebook's 'Like' button. (Brenden Smialowski/AFP/GettyImages)

Facebook ‘Likes’ Revealing More Than Users Intended

Clicking those friendly blue “like” buttons strewn across the Web may be doing more than marking you as a fan of Coca-Cola or Lady Gaga.

03/11/2013

A human skull is displayed at the Hall of Human Origins of the American Museum of Natural History. (AP Photo)

Stanford Study Traces Human Origins To Southern Africa‎

Modern humans may have originated in southern Africa, where hunter-gatherer populations had the greatest genetic diversity, a team of Stanford University researchers said Tuesday.

CBS San Francisco–03/08/2011

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