NAGOYA (Kyodo) A 5.3-meter-tall high-voltage wire fence at Kyoto University’s research center in Inuyama, Aichi Prefecture, proved no match for about a dozen monkeys bent on breaking out, it was learned Tuesday.
The monkeys first climbed up trees and then used their branches as slingshots to propel them over the fences, researchers said. The trees are about 2 meters high and 2 to 3 meters from the fences.
“Their jumping power was greater than we thought,” said Hirohisa Hirai, deputy head of the institute, adding the trees were cut short to prevent flight.
The primates had either come back to the center or had been caught by the university’s Primate Research Institute by Monday. On Sunday afternoon, researchers found more than 10 monkeys hanging around outside the fences and recaptured five by luring them with peanuts.