伦敦动物园的再生雕塑作品展览展示20，这样的北极熊塑料袋雕塑。

London Zoo's Recycled sculpture exhibit showcases 20 works, like this plastic bag sculpture of a polar bear.

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然而，随着这种迹象越来越明显，来自伦敦动物园的专家们被迫开始了调查。

However, as the evidence began to accumulate, experts from the London Zoo felt obliged to investigate.

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我们与乌鸦喂养师、英国伦敦塔管理方和动物管理局、鸟类馆和伦敦动物园的专家密切合作。

We worked closely with the Ravenmaster, HM Tower of London, and with specialist input from the Zoological Manager and Curator of Birds, ZSL London Zoo.

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