Top ancient mysteries of 2011

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Paleoanthropology
To round out this big list, here are a few of the tales of human ancestors that caught my eye over the past year:

• Humans left the trees 4.2 million years ago


• Upright walking may go back 3.7 million years


• 2 million-year-old fossils seen as 'game-changer'


• Cavemen stayed put, but the women wandered


• Ancestors began cooking 1.9 million years ago


• Cretan tools point to 130,000-year-old sea travel


• How sex with Neanderthals made us stronger


• Did Neanderthals make their last stand 33,000years ago?

Via: Cosmic Log