Angry chimp on a mission to destroy all zoo visitors

Santino the chimp is getting meaner by the day -- which means he's thinking more like a human. The male chimp, notorious for pegging gawking visitors with rocks and other projectiles, has upped his game from simply throwing to now carefully stashing his weapons when no one's watching and preparing for his attacks like a military mastermind. His cunning plot involves heaping hay near the visitor's section, slipping his "missiles" underneath and waiting until the next group of unsuspecting humans arrives. Then, without warning, he unleashes the blitz. Thrilled scientists are impressed with Santino's sophisticated ability to foresee the entertaining screams and chaos he provokes, a trait that, unfortunately, sounds incredibly human.