An African penguin swims in a pool at the Servion zoo in Switzerland.

一只非洲企鹅在瑞士Servion动物园的一个水池中游泳。

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A group of African penguins gather near a pond at a conservation site in Cape Town, South Africa. Birdlife International say the African penguin is edging closer to extinction.

一群非洲企鹅挤在开普敦一处保护中心的池塘边。国际鸟类联盟认为非洲企鹅正濒临灭绝。

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But a paper in Biology Letters suggests that even a relatively small protected area can have a positive impact on a top predator - in this case, the African penguin, an endangered species.

但生物学通讯一篇论文提出，哪怕一个相对较小的保护区也可对顶端捕食者产生积极作用，在此指的是濒临灭绝的非洲企鹅。

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