LizBonninpresentsacontroversialandprovocativeepisodeofHorizon,investigatinghownewscientificresearchisraisinghardquestionsaboutzoos-thefilmexploreshowandwhyzooskeepanimals,andwhethertheyneedtochangetokeepupwithmodernscienceorultimatelybeconsignedtohistory.Shouldzoosculltheiranimalstomanagepopulations?LiztravelstoCopenhagenZoo,whokilledagiraffeandfedittothelions,towitnesstheircullingprocessfirsthand.Theythinkitisanaturalpartofzookeepingthatisoftensweptunderthecarpet.Shouldsomeanimalsneverbekeptincaptivity?Inaworldexclusive,LizvisitsSeaWorldinFloridaandasksifcaptivitydroveoneoftheirorcastokillhistrainer.Butcouldzoosbetheanswertoconservingendangeredspecies?Lizexaminestheirrecord,fromhelpingbreedpandasforthewildtoeffortstosavetherhinos.Shemeetsoneofthelastsurvivingnorthernwhiterhinosanddiscoversthefutureofthisspeciesnowliesinamultimillion-dollarprogrammetoengineerthemfromstemcells.VeteranconservationscientistDrSarahBexelltellsLizthescienceofcaptivebreedingisgivinghumanityfalsehope.如果您喜欢冰河影院(www.sylbshb.com)分享的《地平线系列:我们该关了动物园吗》,别忘了推荐给你的好友!
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