Quote:
Researchers in the US say they have firm evidence that apes communicate using gestures - shedding light on the development of human language.
The team analysed the way bonobos and chimpanzees used hand and limb gestures to make themselves understood.
The scientists found the apes used gestures more flexibly than the way they used facial and vocal expressions.
They say the findings support the theory that human language developed through the use of hand gestures.
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Quote from BBC News Website
http://news.bbc.co.uk/1/hi/sci/tech/6610447.stm
i know a lot of people who havent developed from hand gestures
