A group of 15 monkeys at Kyoto University's primate research institute in Aichi Prefecture, which are the focus of a string of high-profile scientific studies, escaped from their forest home which is encased by a 17ft high electric fence.
The monkeys made their bid for freedom by using tree branches to fling themselves one by one over the high voltage electric fence located nearly three metres away.
However, despite the intelligence shown in their great escape, the primates appeared unsure as to what to do with their newfound freedom: the monkeys remained by the gates of the research centre and were lured back into captivity by scientists armed with peanuts.
"It was an incredible escape and the first time something like this has ever happened," Hirohisa Hirai, the deputy head of the Primate Research Institute told the Daily Telegraph.
"We think that maybe there was some kind of dispute among the monkeys in the forest and so this group decided to leave.
"Fortunately, they stayed by the fence after escaping as they probably wanted to stay near to the other monkeys so we managed to recapture them all.
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