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ST. LOUIS (AP) - A rock-loving orangutan named Rubih is suspected of going ape on the observation windows of her St. Louis Zoo enclosure, forcing nearly $200,000 in repairs and the exhibit's closure until later this month.

The St. Louis Post-Dispatch reports that the 7-foot-tall, triple-paned windows that zookeepers believe were damaged by the 12-year-old female orangutan were replaced in mid-November with 3-inch thick acrylic ones.

Zoo officials say the repairs were required after Rubih for months tapped or banged rocks repeatedly against four of the six windows.

The zoo's ape care team had taught Rubih to bring rocks to them and be treated. But the ape kept banging on the windows with rocks when zookeepers weren't around, presumably to get someone's attention for a treat.

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Information from: St. Louis Post-Dispatch

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