Chimpanzees pictured rampaging through Hanover Zoo "He took himself off to see the head gorilla," said Simone Hagenmeyer, the zoo spokeswoman. He was a bit harder to coax back. He's getting on a bit so we gave him a ladder to climb back into the enclosure. The moment visitors to the zoo were confronted by the chimpanzees was captured by Kai Hauser, 34, on his mobile phone. Nobody saw anything, only the loud screaming from the chimps came through the bushes so it was frightening and everyone on the way stopped walking and was looking around with open mouths. Then we heard a women behind the bushes shouting, 'Oh no! Stop, come back. A few seconds later one chimp came around the corner - he was very relaxed and walked up to a man and gave him a hug. The chimp looked like he wanted to kiss him... but then he opened his mouth revealing his big teeth and we feared he could bite his chin off.