Officials say the actions of 29 children from the Radclyffe School, Chadderton, were so inappropriate they threw them out of the zoo.
Around 300 students were on the trip — intended as a treat for year nine and ten youngsters.
But the conduct of some children was so disruptive zoo officials says they had no option but to enforce the ban, which will last until 2015.
Ground breaking initiative from local school.
In an attempt to increase their knowledge of the natural world, school governors and Mr Wishy Washy the Head of The Radclyffe School, Chadderton, have formulated a plan to introduce knobheads, scallies, recidivists,and other general time wasters to the great animal kingdom. As soon as the teachers have become acclimatised to the new regime,
As a special treat at the end of the visit all the cages will be opened and the little shitheads will enjoy free association with Ronnie and Reggie , the zoo's lovable pet Rhinos.