Seven chimpanzees escaped their enclosure for about 90 minutes at the Kansas City Zoo on Thursday, but they were eventually rounded up by staff.
Zoo executive director and CEO Randi Wisthoff said that though none of the zoo's attendees were ever in any danger, those in the exhibit were temporarily taken to lockable buildings to be safe, reports the Kansa City Star.
The chimps were able to slip out of their enclosure when the mastermind behind it all grabbed a six-foot log and leaned it against the wall and six others clambered out with him.
Though they primarily remained in the 'Africa' exhibit of the zoo, three were actually found on the other side of the area, according to the Los Angeles Times. Employees lured the escaped chimps with food and treats back into their enclosure.
"That's what chimps do, they figure things out," Wisthoff said. "They will use that intelligence they have to problem-solve. Well, they solved a problem."
None of the escaped chimps were very large, with the largest being about 150 pounds. The smallest to slip the enclosure is about 80 pounds.