Do We Need Zoos?Over the Memorial Day weekend, a 4-year-old boy climbed the guardrail at the Cincinnati Zoo and into the enclosure of a 17-year-old silverback gorilla named Harambe. By now, most people know how this played out. The boy’s mother had lost track of him, long enough that he crawled over a wall and fell 10 feet into a moat at the bottom. Harambe stood over the child, as if protecting him from the people yelling above, then grabbed the boy’s arm and jerked him through the water