On August 1, 1990, dozens of visitors at the Detroit Zoo watched an 18-year-old chimpanzee named Jo-Jo struggle to stay above water in the moat surrounding his exhibit. Chimpanzees generally can't swim, and most are afraid of water. As the crowd looked on, a zoo worker tried to reach him with a pole. It wasn't enough. One visitor decided that wasn't enough either. "I Just … [Read more...] about Zookeepers refuse to save chimpanzee from drowning – then truck driver does what no one else dares