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Haha! Zoo chimp 'planned' stone attacks
http://news.bbc.co.uk/1/hi/sci/tech/7928996.stm
A male chimpanzee in a Swedish zoo planned hundreds of stone-throwing attacks on zoo visitors, according to researchers.
Keepers at Furuvik Zoo found that the chimp collected and stored stones that he would later use as missiles.
My favourite chimp ever.