BBC地平线：我们该;关了动
][物园吗？

剧情简介

Liz_
 Bonnin,
presents a  c:/]=ontr?oversial and p/^),rovocative_+ e ;pisode& of Horizon, investigating how#!# / ^ne-w scien[];t&%.i*>fic researc\h i.>s raising hard ques t^_$ ion 
s ab/'\%>out:< z:oo<-'
-s  - th\_e film exp_?>lores !how []and why z[ oos` keep anim:als, and?)$& whethe\,-r they need to chang e to keep up)` 
](with mod>ern science or ul_/tima, tely be con+%?si g!.ned !'+to(( histo .ry.
　　Should zoos cull their[;@ anima@ [:<ls to ]< 
manage populatio)>ns? Liz t<+ravels to ]#Co"penha...