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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.盛夏时节，鬼子的一辆军车在山区的树林里遭到我八路军一个连的伏击。一阵密集的子弹过后，一名侥幸的鬼子夺路而逃，但没跑出多远，就被布在草丛中的一个绳扣倒着吊上了树梢。绳扣是一个年龄在十五、六岁的孩子布下的。捡起鬼子的枪，男孩子满以为就是自己的了，可八路军战士也缺枪，不少参军时间长的老兵至今用的还是大刀，怎么可能把枪交给一个孩子呢？ 　　那孩子也是倔。在张连长试图用跑步前进的办法也没将孩子甩掉后，“老胶东”大叔的建议让张连长答应把那个男孩留了下来。入夜时分，部队回到营地休息时，“老胶东”得知了男孩的身世。原来，男孩名叫何远山，打小跟爹在山林里学打猎。爹娘在鬼子的扫荡中双双身亡后，何远山的心里只有一个念头：打鬼子报仇！部队接到新的命令，在老牛坡一带阻击敌人，掩护八路军机关、医院和山区群众撤退。就在王团长赶过来看望进入大战前准备的连队时，何远山为张连长不让自己参战而随机关撤退和“老胶东”吵了起来。大战在即，面对脾气如此之倔的孩子，王团长的办法是比枪法，打中了，参加阻击；打不中，给自己当勤务兵陈启不加犹豫的答应了。赵宝儿剧中饰演债务人家的大女儿，生活能力强的空姐独汝周一角。Now start a container using the v5 version image, but add the following command when starting:?