But if their bid for freedom suggests a superior intelligence, what happened next was disappointing.
Having made their escape, they were not sure what to do next and decided to hang around outside the perimeter of the Kyoto University research center in Inuyama, Aichi Prefecture.
According to the Japan Times, they were then recaptured by research staff who lured them back inside with peanuts.
NUTTY NEWS APPs: iPhone, iPad, iPod Touch – Android
Nutty News Today – Nutty Videos – Nutty News on Twitter - Nutty Videos on Twitter - Strange Crimes - True Crime Stories – FBI Most Wanted – Amber Alerts – Strange Facts - Today’s Nutty Joke - Facebook