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老太太笑容满面地对四丫头道，少爷这是夸你们呢。Cinemas are usually in shoppingmall, which is a commercial rule. Therefore, people usually don't just watch movies, but throw themselves here for at least half a day, including eating, shopping and watching movies.Liz Bonnin presents a controversial and provocative episode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film explores how and why zoos keep animals, and whether they need to change to keep up with modern science or ultimately be consigned to history.Should zoos cull their animals to manage populations? Liz travels to Copenhagen Zoo, who killed a giraffe and fed it to the lions, to witness their culling process first hand. They think it is a natural part of zoo keeping that is often swept under the carpet. Should some animals never be kept in captivity? In a world exclusive, Liz visits SeaWorld in Florida and asks if captivity drove one of their orcas to kill his trainer.But could zoos be the answer to conserving endangered species? Liz examines their record, from helping breed pandas for the wild to efforts to save the rhinos. She meets one of the last surviving northern white rhinos and discovers the future of this species now lies in a multimillion-dollar programme to engineer them from stem cells. Veteran conservation scientist Dr Sarah Bexell tells Liz the science of captive breeding is giving humanity false hope.杨长帆拿起已经近乎被自己淡忘的航海仪，擦去上面的灰烬，屏幕依然完好如初。Jiangxi Province赵光头摇头道：咱们这行当，没别的，虽风里来血里去，却好在自在。