Last Updated: Friday, January 17, 2014, 17:32
Food sharing promotes social bonding in chimpanzees, leading them to form cooperative relationships, a new study has found.
Last Updated: Wednesday, January 23, 2013, 09:04
DNA analysis has found that ancient humans living some 40,000 years ago in the area near Beijing were likely related to many present-day Asians and Native Americans.
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