For many years, zoos have used water moats to confine chimpanzees, gorillas and orangutans. When apes ventured into deep water, they often drowned. Some argued that this indicated a definitive difference between humans and apes: people enjoy the water and are able to learn to swim, while apes prefer to stay on dry land. Well, chimpanzee Cooper proves we're wrong. See how he confidently is wading through the pool.